Brett asked George and Danielle to help him hang up 30 posters for a school dance. He gave 15 of the posters to George. He gave 13 of the remaining posters to Danielle. Brett hung the remaining posters. How many posters did Brett hang?

When only separate discreet points are graphed it is called?

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.

Jonathan puts $400 in a bank account. each year the account earns 6% simple interest. how much interest will be earned in 5 years?