The following blank indicates a missing operation in the equation. 5(12q+3r−4s)−9r=52q [blank] −−−−−−6r−20s
What operation fills in the blank to make the equation a true statement?

Enter "+" for addition or "-" for subtraction.

How many sides does a regular polygon have if each exterior angle measures 72a.3b.4c.5d.6

Choose the point slope form of the equation below that represents the like that passes through the points (-6,4) and (2, 0)

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.