Which set of side lengths forms a right triangle? O 2.3, 13
O 4, 6, 10
O 9, 12, 18
O 15, 36, 39

If 10 men take 18 days to mow 60 acres of grass, how long will 15 men take to mow 80 acres?

Find the solution of this system of equation -7x+y=-20 9x-3y=36

John used linear combination to solve the system of equations shown. he did so by multiplying the first equation by -3 and the second equation by another number to eliminate the x-terms. what number did jonas multiply the second equation by? 4x-6y=23x+5y=11