How much pure acid should be mixed with 7 gallons of a 40 % acid solution in order to get an 80 % acid solution?

At Hoffman's Bike Rentals, it costs $33 to rent a bike for 8 hours. How many hours of bike use does a customer get per dollar?

Drew jogged 15,840 feet in 45 minutes. How may miles did he jog?

Find the perimeter of a rectangle that is 5three fourths in. by 7 in.

Factor by grouping. 21m2 - 29m - 10

Compare. the values and order them from least to greatest. 3.65 feet 4.1 feet 3 11/16 feet

What is the answer to (3x) to the 5th power

What is 45 decreased by 12 percent

Zhen is an audiobook narrator. The table gives some completed audio lengths and the amount of time Zhen spends researching, recording, and editing the audiobook. Completed (hours) _ Working time (hours) 1 _ 6 1/2 3 1/2 _ 22 3/4 7 _ 45 1/2 10 _ 65

What Katie bought some flour she used 3/8 of it to bake bread what percent of the flower is left over

Which of the following are independent events? A. Knowing that you have to get up early tomorrow, and going to bed before 9 p. m. B. Knowing that you have a test in school tomorrow, and studying the night before C.