If f(x) = 8x, which of the following is the inverse of f(x)?

a. f –1(x) = x + 8
b. f –1(x) = x – 8
c. f –1(x) =
d. f –1(x) =

Mustafa contributes 11% of his $67,200 annual salary to his 401k plan. what is his pretax income

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%

Astudent draws two parabolas on graph paper. both parabolas cross the x-axis at (–4, 0) and (6, 0). the y-intercept of the first parabola is (0, –12). the y-intercept of the second parabola is (0, –24). what is the positive difference between the a values for the two functions that describe the parabolas? write your answer as a decimal rounded to the nearest tenth