Maya has a sandbox that is 4, feet long, 3 feet wide, and, foot deep. How many cubic feet of sand does she need to fill the sandbox completely?
A. 6 3/4
B. 13 1/2
C. 8
D. 5 1/4

What is the solution to the system of equations? (–2, –8) (–1, –5) (0, –2) (2, 4)

The number of chocolate chips in an 18-ounce bag of chocolate chip cookies is approximately normally distributed with a mean of 1252 chips and standard deviation 129 chips. (a) what is the probability that a randomly selected bag contains between 1100 and 1500 chocolate chips, inclusive? (b) what is the probability that a randomly selected bag contains fewer than 1125 chocolate chips? (c) what proportion of bags contains more than 1225 chocolate chips? (d) what is the percentile rank of a bag that contains 1425 chocolate chips?

Ineed in figuring out this problem.