A tank can hold n gallons of gas. If x gallons of gas have been used, what percent of the gas has not been used?

A) 100x

n

B) n

100x%

C) 100n
%
x

D) n
%
100 (n-x)

E) 100(n-x)
%
n

The point a is at –2 and the point b is at 7. marissa would like to divide this line segment in a 4: 3 ratio, and she would like to use the formula x = (x2 – x1) + x1. what values should she substitute into the formula? a = a + b = x1 = x2 =