Simplify the following expressions.

1) (6+6i) - (2+i)

2) (9+4i) (9+4i)

3) (8+i) (2+7i)

Tan 2t=0 on an interval [0,2pi) solve and simplify

The monthly sales of an auto dealer went from 240 to 300 cars. By what percentage did the auto sales increase 20% 25% 30% 60%

Convert the following units. a. 108 eggs to dozens b. 35.79 dollars to cents c. 64 identical shoes to pairs d. 19,045 cents to dollars e. 19 dozen cookies to individual cookies f. 7 gross of identical gloves to pairs

Original price 49.99 discount 50 percent

Describe the difference between sociology and psychology

A newspaper reporter wants to know how popular the hobby of bird watching is in the city. He asked people at the local bird refuge if they watched birds as a hobby. Which of the following best explains whether the reporters data is valid or not?

I am very confused on how to figure out if y = 3/4x is proportional?

Alison wants to buy a mountain bike for $339.12. If she saves $28.26 each month, in how many months will she be able to buy the bike?

At 12 o'clock the temperature was 7°C. The temperature decreased by - 20°C. What is the new temperature?

Ashleys rentals charges $27.50 per hour to rent a surfboard and a wetsuit. Darlas surf shop charges $23.25 per hour to rent a surfboard plus $17 extra for a wetsuit.