Task Stan wants to put a rectangular garden in his backyard. He has sketched out a plan for the garden
on a grid of his rectangular backyard. The scale for the grid is 1 unit equals 3 feet.
Stan's Backyard

Find the greatest common factor of the followig monomials 21u^5v,3u^4v^6, and 3u^2v^5

Simplify. −4x^2 (5x^4−3x^2+x−2) −20x^6−12x^4+8x^3−8x^2 −20x^6+12x^4−4x^3+8x^2 −20x^8+12x^4−4x^2+8x −20x^6+12x^4+4x^3−8x^2

Tim's phone service charges $26.39 plus an additional $0.21 for each text message sent per month. if tim's phone bill was $31.64, which equation could be used to find how many text messages, x, tim sent last month?