Combine like terms. 9 + 18s - 7s

a. 20s

b. 9 + 11s

c. 9 - 11s

d. 20

Consider this system of linear equations: 22x - y = - 23 (equation 1) 11x + 12y = 1 (equation 2) To find the value of x, you need to substitute in equation 2. The value of x is.

The radius of a circular track is 50 feet. How many feet of fencing is needed to completely enclose the track? Use 3.14 for pi

What is 70% of $14.99?

that the value of f (x) = 5x^2+4 is greater than the value of g (x) = 2^x over the interval (0,8) as x increases will the value of f (x) always be greater than the value of g (x) explain how you know

Simplify the expression 5^3 * 5^8

Length of 20 meters and width 10 meters

Find two numbers whose sum is - 39 and whose product is 10

Solve the equation p=2q+2w for q

Solve equations and justifying - 30=-6 (r+7)

Supergym is a national chain of gyms. Its employees sold 8,040 gym memberships last year. This year, they sold 50% more memberships than that. How many memberships did they sell this year?