Working alone, Elisa can sweep a porch in 11 minutes. Pranav can sweep the same porch in 13 minutes. Find out how long it would take them if they worked together.

A) 5.96 minutes

B) 5.21 minutes

C) 5.86 minutes

D) 4.87 minutes

The volume of the prism shown is 72 inches cubed. A rectangular prism with a length of 4 inches, width of 3 inches, and height of 6 inches. What is the volume of a pyramid with the same base length, base width, and height?

Solve this system of equations: y = 2t^2 + 3t + 500 and y = 3t^2 + t + 300

The life of a certain brand of battery is normally distributed, with mean 128 hours and standard deviation 16 hours. what is the probability that a battery you buy lasts at most 100 hours? standardize the variable. x = 100 is equivalent to z =

The local sports shop has backpacks on sale for $28. The original price was $40. What is the percent decrease for the backpack price?

Choose the correct simplification of the expression 4 times b all over a to the power of negative 10. a to the 10th power times b all over 4 4a10b 4 over a to the 10th power times b Already simplified

Which of the following is equivalent to 2x-8+3 (4-x) A] 4-x B] x-4 C] 5x+4 D]5x-20

The base of a square pyramid has a side length of 9 inches. The height of the pyramid is 21 inches. What is the volume of the pyramid? A. 189 in3 B. 567 in3 C. 850.5 in3 D. 1701 in3

A group of 5 friends is sharing 2 pounds of trail mix. Write a division problem and a fraction to represent this situation.

Which is better average: 10 of 15 free throws or 8 out of 10 free throws? Which is a better average?

Imagine you live only one mile from work and you decide to walk. if you walk four milesb per hour how long will it take you to walk one mile?