A rectangle has a perimeter of 80 feet. The length, L, is 4 feet more than the width, w, of the rectangle. Which expression can be used to represent the length in terms of the width?
F W-4
G W + 4
H L = w+ 4
J 44 = 2(w + 4) + W

Determine the mean and variance of the random variable with the following probability mass function. f(x)=( 729divided by 91) (1 divided by 9) superscript x baseline comma x equals 1,2,3 round your answers to three decimal places (e.g. 98.765).

Acar travels at an average speed of 52 miles per hour. how long does it take to travel 299 miles

Ijust need to see how to do this. so you don’t have to answer all of them just a step by step explanation of one.