A video rental store charges a $20 membership fee and $2.50 for each video rented. If 15 videos are rented what is the revenue? If the member paid the store $67.50 in the last 3 months, how many videos were rented

Given the function f(x) = 3x + 1, evaluate f(a + 1). a. 3a + 1 b. a + 2 c. 3a + 4

Agroup of students want to create a garden. they do not know the exact measurements but they propose using a variable to represent the length and width of the garden. the length of the garden is 10 feet longer than double the width. use a single variable to write algebraic expressions for both the length and width of the garden. write an algebraic expression for the area of the garden. use mathematical terms to describe this expression.

Find the center and the radius of the circle with the equation: x^2-2x+y^2+4y+1=0?