May I have step by step solutions to help me. thank you! I have the questions below as well as an attached word and pdf file.

1. Graph each equation to find the solution of the system.
x - 2y = 4
2x + y = 6

2. Draw a line on the grid (the Cartesian plane) so that the system of no equations has NO solution.

3. Darlene made some trail mix by combining raisins and peanuts. Raisins cost $3.00 a pound and peanuts cost $4.20 per pound. If she ended up with three pounds of trail mix that cost $3.36 per pound, how many pounds of raisins did she use?

4. Harriet needs to dilute a medicine before giving it to a patient. She has a 40% solution but needs a 25% solution. How much water does she need to add (note the water is a 0% solution) so that she will have 0.5 liter of the 25% solution?

5. Simplify:

6. Rationalize the denominator:
7. The radius, r, of a sphere with volume V is given by the formula r= . If a sphere has radius 5 inches, what is its volume?

Equations. The techniques for solving linear equations and linear inequalities are similar, yet different. ... 4 Now, the system of equations stops here. ...

... The solution gives detailed steps on solving various algebra questions: finding the midpoint of segment, finding the equation of line if it is parallel or ...

Algebra Questions. See attached file for full problem description. ... Please see the attached file. The solution shows how to solve the linear equations in detail. ...