### Multiplying Brackets, Simplifying & Model Rocket Height

1. (a) Perform the indicated operation and express the result in the form a + bi. (1 - i) (3 + i). (b) Simplify. i15 (c) x - 2y - 7 = 3x i + 5yi - 10 i 2. A model rocket is launched with an initial velocity of 100 feet per second from the top of a hill which is 20 feet high. Determine the time, t , that the rocke