Simplify the expression. - - (9m - 7)

What is the answer to this problem? 8x + 7 - 4x + 1 = 20

A pump will pump 125 gallons per minute. How long will it take to empty a 12,000 gallon tank?

The area of a rectangular invitation card is 3/10 square foot. given that the length of the card is 4/5 foot, find its perimeter.

Colby is making a home video consisting of a 5-minute introduction followed by several short skits. Each skit is 9 minutes long. If Colby's video is 176 minutes long, how many skits are in his video?

How many elements are in the union of four sets if each of the sets has 96 elements, each pair of sets share 52 elements, each triple of sets shares 22 elements and there are 6 elements in all four sets.

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.