The length of a rectangle is 3 times the width. The perimeter of the rectangle is 19.2 cm. Define a variable and write an equation that can be used to find the length and width of the rectangle. Find the dimension of the rectangle. Show all work.

The number of chocolate chips in a bag of chocolate chip cookies is approximately normally distributed with a mean of 12611261 chips and a standard deviation of 118118 chips. (a) determine the 2626th percentile for the number of chocolate chips in a bag. (b) determine the number of chocolate chips in a bag that make up the middle 9696% of bags. (c) what is the interquartile range of the number of chocolate chips in a bag of chocolate chip cookies?

Compute the standard deviation of the following set of data to the nearest whole number. 10, 10, 15, 20, 25

Yesi's dog weighed 5 pounds when she got him. he now yesi's dog weighed 5 pounds when she got him. he now weighs 45 pounds. how much did yesi's dog gain, in ounces?