24 times 21 using the area model

Write an expression for the calculation double the number 15 and then add 25 divided by 5

Mick paid $2.94 in sales tax on an item that costs $42.00 before tax. At that rate, how much would he pay in sales tax for an item that costs $58.00 before tax?

Two school buses leave the same school at the same time, but are headed in opposite directions. One bus traveled 45 miles per hour and the other bus traveled 40 miles per hour. How long until the buses are 170 miles apart?

What's the percent of change from 5000 to 6000

32.5% of what is 12.48?

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.