Find each sum or difference

(5a+9b) - (4b+2a)

During the summer Brianna works at a coffee shop she saves 75% of her earnings to buy new school clothes if Brianna and $750 what is the best estimate for the amount of money she saves to buy clothes A. 100 B. 150 C. 300 D. 550

Ramón says he can use the commutative property of multiplication to show the product of 4 x 6 is the same as the product of 3 x 8. Is he correct? why or why not?

Teddy called the movie theater to find out how much tickets cost for him and his seven friends to go to the new hero movie. He remembered that the total was $60 if they go to the early movie but not how much each ticket is.

For his chemistry experiment, Martin needs 3 liters of a 40% alcohol solution. The lab has two containers, one with 20% alcohol solution and the other with 50% alcohol solution. a.

Devon wants to memorize 1/2 of his lines for a play by the end of the week. He has already memorized 1/8 of his lines. what fraction of his lines does he still have left to memorize? Draw a visual model to support answer

roadway signs are used to warn drivers of an upcoming steep down grade that could lead to a dangerous situation. If the grade shown in the sign is 8%, what is the slope?

Complete the following sentence: Two events that are mutually exclusive ...

What is the volume of this right rectangular prism. 7 feet length 2 feet width and 3.5 feet Height

A printer can print at a rate of 48 copies per minute. Find the time taken for the printer to print 656 copies. Give your answer in minutes and seconds.

Find the prime factorization of each number 891