What is the formula for compound interest?

How to solve percentages math problems

How much is 1/9 of 3/8? 1/24 19/72 8/27 27/8

solve for x x^2+10x=-25

Daniel kicks a soccer ball up in the air with an initial upward velocity of 64 ft. per second. The ball is 2 ft. above the ground when it is kicked. The following function represents this situation: - 16x2 + 64x + 2.

A has a promotion if you buy 3 shirts you get 25% off the total price of 3 shirts store B has the same shirts on sale with the promotion that if you buy 3 shirts you get the 3 shirt at 50% discount.

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.