How to find an angle of triangle with two sides

Sneakers that cost $48.99 go on sale for 25% off. a. What percent of the original price is the sale price? b. What is the sale price? Round to the nearest cent.

Whats a+mc (64800) + 208x24070+b equal?

Enter the value of the exponential expression 5°

Prime factorization of 42

Music store has 125 cd's. 64% are on sale, the rest are at full price. how many cd's are selling at full price?

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.