Find the solution to the system of equations.



-2x+2y=-4

3x+3y=-18

Bob pays a $2 toll each way when going to and from work. How much does he pay in four weeks, working five days a week

Set up an algebraic equation and then solve the following problems. The height of an object dropped from the top of a 64-foot building is given by h (t) = -16t^2+64. How long will it take the object to hit the ground?

If the equation of the regression line for the data set (3, 6), (6, 2), (9, 10) is, what is the SSE for the data set? A. 16 B. 10 C. 4 D. 24

If f (x) and f (x) are inverse functions of each other and f (x) = 2x+5, what is f1 (8) ?

Deep Blue, a deep sea fishing company, bought a boat for $250,000. After 9 years, Deep Blue plans to sell it for a scrap value of $95,000. Assume linear depreciation.

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.