Suppose $100 is deposited into an account and the amount doubles every 8 years. How much will be in the account in 40 years? (Use exponents)

In the morning, a farm worker packed 3 pints strawberries every four minutes. In the afternoon, she packed 2 pints of strawberries every three minutes. What was the difference between her morning and afternoon packing rates, in pints per hour?

Julie needs to cut 4 pieces of yarn each with the same length and a piece of yarn 7.75 inches long. let y represents the length of each of the equal pieces of yarn that julie decides to cut.

Solve by substitution 9x-5y=-30 x+3y=18

Jim duggan made an investment of $10000 in a savings account

What is the solution to the following system? -4y=8 x+3y-3z=-26 2x-5y+z=19 a) x = - 53, y = - 2, z = 7 b) x = - 41, y = - 2, z = - 7 c) x = - 11, y = - 2, z = - 7 d) x = 1, y = - 2, z = 7

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.