Factor the expression. r2 - 49

Find the total cost uing each unit 5 ft at $3 per foot

What is the greatest common factor between 8x and 40?

Each month, the census bureau mails survey forms to 250,000 U. S. households asking questions about the people living in the household and about things such as motor vehicles and housing costs.

One number is 5 greater than another. the product of the numbers is 150. find the numbers. one pair of numbers, both of which are positive, is nothing.

What is the area of a triangle whose base is 12 m and whose height is 18 m

Mick has a bag with 2 mint sticks, 11 jelly treats, and 7 fruit tart chews. If he eats one piece every 10 minutes, what is the probability his first two pieces will be a jelly treat and a mint stick? Give your answer in a percent.

What is the value of 5x^3+4y^3 when x=4 and y=3?

Find the rate and unit rate: 216 miles per 9 gallons A: 24 miles per 1 gallon B: 42 miles per 1 gallon C: 25 miles per 1 gallon D: 16 miles per 1 gallon

At 8:00 a. m., the outside temperature was - 16°. by 9:00 a. m., the outside temperature had dropped 6.5°. what was the outside temperature at 9:00 a. m.? a. 22.5° b. 9.5° c. - 9.5° d. - 22.5°

What is one thousand less than 921,438