Suppose that the only paper money consists of 3-dollar bills and 10-dollar bills. Use a proof by strong induction to show that any dollar amounts greater than 18 dollars could be made from a combination of these bills.

Your company withheld $4,463 from your paycheck for taxes. you received a $713 tax refund. select the best answer round to the nearest 100 to estimate how much you paid in taxes.

Three students, javier, sam, and corrine, participated in a fundraiser where people donated a certain amount of money per lap that the student ran. each student also had some initial donations that were collected before the run. the equations that represent each student's total donation, y, based on the number of laps ran, x, is shown below. match each equation with the correct rate of change for that student.

What are the solutions for the following system? -2x^2+y=-5 y=-3x^2+5