Simplify the expression: - 5 (-6x-9y) - 4 (-10x+7y)

What is the solution to the system of equations? 5x+4y=8 and x-2y=10

Which of the following are true statements about the expression - 8 + 8? 1. The expression describes the number that is 8 to the left of - 8 on the number line. 2. The expression describes the number that is 8 to the right of - 8 on the number line.

Bernice wants to know which ice cream parlor is the most popular among students at her school. Which samples are random for this population and which are not?

Three is added to a number and the result is multiplied by seven. The answer is two more than twelve.

Gavin is a sandwich maker at a local deli. Last week, he tracked the number of peanut butter and jelly sandwiches ordered, noting the flavor of jelly and type of peanut butter requested.

The cost of a camp is $300 for the first week and $125 for each week beyond the first. The total cost can be modeled by the expression 300 + 125 (x - 1). What does (x - 1) represent?

On the first day of the fiscal year, a company issues $65,000, 6%, five-year installment notes that have annual payments of $15,431. The first note payment consists of $3,900 of interest and $11,531 of principal repayment. a.

Which set of side lengths could be used to form a right triangle?

What's the greatest common factors for 24 and12

john is 2 years more than twice as old as david. the sum of their age is 14, find the age of each child