Amanda measures the top of an 80 cm desk to be 82.4 cm. Dwayne measures the height of a 140 cm cabinet to be 137.2 cm. Which student has a greater percent error? Explain your reasoning.

Luis is bought 3 pounds of carrots for 75 cents a pound. She also bought a box of crackers. In all she spent $4.54. How much did the box of crackers cost?

The value of the 4 in 34,258 and 47,163

Evaluate the expression when c=2 and y = - 7 -9y+c

Pam is building a rectangular lap pool that is four times the length and four times the width of her present spa. She is leaving the height the same as her existing spa. How many times as much water does the pool need than the spa?

Solve the equation. 8b - 7 = 7b - 2

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.