9. Find the unit price for the item: $35.80 for 4 caps.

10. Rewrite the statement, using percent notation.

13 out of 25 college students work at part-time jobs.
A) 13%
B) 52%
C) 26%
D) 25%

11. Find 60% of 3,200.
A) 192
B) 1,920
C) 1,280
D) 128

12. Complete the statement.

3, 500 cm3 = ________ L
A) 3,500
B) 350
C) 35
D) 3.5

13. Give an appropriate name for the indicated angle.

A) ABC
B) BCA
C) CAB
D) CBA

14. Subtract.

A) 6 gal 3 qt
B) 6 gal 1 qt
C) 5 gal 3 qt
D) 5 gal 2 qt

15. Find the rate:

A) 49

B) 0.02

C) 294

D) 94

16. Write 40% as a decimal.
A) 0.4
B) 1.4
C) 4
D) 40

17. Solve for the unknown:

18. Is the rate equivalent to the rate ?

19. Write 0.21 as a percent.
A) 0.21%
B) 2.1%
C) 210%
D) 21%

20. On the blueprint of Lauren's new office building, the scale is 3 in. equals 8 ft. What will be the actual length of Lauren's office if it measures 6 in. long on the blueprint?

Let u,v <- C^n and set A := I + uv^H <- C^nxn.
(a) Suppose A is invertible. Prove that Inverse(A) = I_n + auv^H , for some a <- C. Give an expression for a.
(b) For what u and v is A singular?
(c) Suppose A is singular. What is the null space of A, N(A) in this case?

1. Write the interval notation for the graph up through 10.
-¥Ü-20____-10___0___10___)20_______30______?
2. Write in interval notation the real numbers between 0 and 1.
3. Write in interval notation the set of real numbers between -2 and 2, inclusive.

What type of Algebra problems covered in an Algebra 1 course do you find to be the most challenging? Why? What did you learn from the experience of an Algebra 1 course and how did you overcome this challenge? If you could provide some tips or advice to new Algebra 1 students, what would you share with them?

Should algebra be taught to everyone? Who should study algebra? The statements below serve as possible answers to these questions and are only 'food for thought.' I welcome your constructive ideas and comments on one or several of them.
Whether you agree or do not agree, the study of algebra is good for the brain. The b

Elementary Algebra: Basic Operations with Polynomials)
2. Which of the following expressions represents the product of 3 less than twice x and 2 more than the quantity 3 times x ?
A. -6x2 + 25x + 6
B. 6x2 + 5x + 6
C. 6x2 - 5x + 6
D. 6x2 - 5x - 6
E. 6x2 - 13x - 6
(Elementary Algebra: Substituting Values into Algeb

Consider two linear function: f(x) and f -1(x), their lines intersect at a point with a x-coordinate of 10 and the slope of f(x) is 1/2
*Find the SI equation
*Find x= f -1 (y) then express the inverse function in terms of x: y = f-1(x)
*graph the two lines on the same set of axes, clearly showing all four x and y interce

Section 4.1 Question #62 - Simplify. Assume that no denominator is 0 and that 00 is not considered
(x25)6
Section 4.2 Question number 12 - Express using positive exponents. Then, if possible, simplify
a −3 b

The mathematical problem for the class is : You have been assigned to ship 480 eggs to children for Easter. How many trucks would have to be loaded if you could pack 12 eggs in each carton and fit 20 cartons on each truck?