Which expressions correctly shows the substitution property? -13 + 3 ÷ 3 = 1(13 + 3 ÷ 3) -13 + 3 ÷ 3 = 13 + 1 -13 + 3 ÷ 3 = 16 ÷ 3 -13 + 3 ÷ 3 = 13 + 3 ÷ 3 + 0

The number of potato chips in a bag is normally distributed with a mean of 71 and a standard deviation of 2. approximately what percent of bags contain between 69 and 73 potato chips? approximately 68% approximately 71% approximately 95% approximately 99.7%

This stem-and-leaf plot represents the heights of the students on ralph's basketball team. one student's height is missing from the plot. if the mean height of all the students on the team is 61 inches, what is the missing height? a. 55 in. b. 59 in. c. 61 in. d. 65 in.

Which translation maps the vertex of the graph of the function f(x) = x2 onto the vertex of the function g(x) = x2 – 10x +2?