Heather drove 405 miles using 20 gallons of gas. At this rate, how many gallons of gas would she need to drive 243 miles?

Which property was used to simplify the expression? 3c+9 +4c=3c+4c+9

Solve for x in the equation x2 - 12x + 36 = 90. x= 6+3x/10 x=6+2/7 x= 12+3/22 x = 12+3/10

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.