What's the answer for 2x-5y=3

You invest $7200 in two accounts paying 6% and 9% annual interest. at the end of the year, the accounts earn the same interest

A polynomial has two terms.

A bike is bought for $940 and sold 10 months later for $800. Find the depreciation equation.

Drew burned 2,000 calories Friday playing one hour of basketball and canoeing for two hours. Saturday he spent two hours playing basketball in 3 hours canoeing and burned 3,300 calories.

What is the value of c in the equation? 15.3 = C/2.1

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.