What is the product?
(-2a² + s) (5a^2 - 6s)

What is the perimeter of a rectangular building that is 80 feet wide and 140 feet deep?

Rob spent 25%, percent more time on his research project than he had planned. he spent an extra h hours on the project. which of the following expressions could represent the number of hours rob actually spent on the project? two answers

How can constraints be used to model a real-world situation?