What are the factors of x^2-81

A.) (x+9) (x-9)

B.) (x-9) (x-9)

C.) (x+3) (x-27)

D.) prime

A salsa recipe used green pepper, onion, and tomato in the extended ratio 1:3:9 how many cups of onion are needed to make 117 cups of salsa

Jan has run 13/7 miles in a road race that is 3 miles long. How much farther must she run to complete the race?

A square pyramid has a height of 18 cm. A side length of the base of 11 cm. What is the volume of the pyramid?

What are the intercepts of the line 5x+y=20

Kiley spent $20 on rides and snacks at the state fair. If x is the amount she spent on rides, and y is the amount she spent on snacks, the total amount she spent can be represented by the equation x+y=20.

A circle has a radius of 7cm. find the radian measure of the central angle? that intercepts an arc of length 16cm.

54.4% of tickets sold to a movie are sold with a popcorn coupon, and 45.6% are not. You want to calculate the probability of selling exactly 6 tickets with popcorn coupons out of 10 total tickets (or 6 successes in 10 trials).

Arron just paid $7.40 for a new pair of sunglasses. His father told him that prices were different 10 years ago. Then his grandfather told him that 20 years ago, prices were even better.

A dump truck is careying 4250 pounds of gravel. There are 2000 pounds in a ton. Express the weight of the gravel in tons only by using a mixed number. If necessary, simplify the fraction part of the mixed number.

A marketing research company desires to know the mean consumption of milk per week among males over age 25. They believe that the milk consumption has a mean of 2.5 liters, and want to construct a 85% confidence interval with a maximum error of 0.