Ellie is collecting pledges for a walk-a-thon. Her mother has pledged a flat donation of $10, and her grandmother has pledged $1 per mile. If Ellie walks a certain distance, the two donors will end up owing the same amount. How much will each donor owe? What is that distance?

Select the correct answer from each drop-down menu. a system of equations and its solution are given below. system a complete the sentences to explain what steps were followed to obtain the system of equations below. system b to get system b, the equation in system a was replaced by the sum of that equation and times the equation. the solution to system b the same as the solution to system a.]

Aclassmate thinks that solving a system by graphing gives an exact answer when the lines appear to cross at a grid point, but only an approximate answer when they don't. explain why this isn't true.

What makes a trapezoid an isosceles trapezoid?