What is the solution of the system of equations? y=-3y+7, y=2x-8

Fredrick designed an experiment in which he spun a spinner 20 times and recorded the results of each spin

Find the area of a parallelogram with the given vertices. p(-2, -5), q(9, -5), r(1, 5), s(12, 5)

Tim's phone service charges $23.06 plus an additional $0.22 for each text message sent per month. if tim's phone bill was $28.56, which equation could be used to find how many text messages, x, tim sent last month?