Is the equation true or false 45 x 18 = (40 x 10) + (40 x 8) + (5 x 10) + (5 x 8)
99 x 31 = (100 x 31) - ( 1 x 31)
64 x 15 = 32 x 30

Prove that 3: 8 is equivalent to 12: 32.a. use diagrams to support your answer.

Which ordered pair (c,d) is a solution to the given system of linear equations- c+2d=13 -9c-4d=-15

Aplane flies around trip to philadelphia it flies to philadelphia at 220 miles per hour and back home with a tailwind at 280 miles per hour if the total trip takes 6.5 hours how many miles does the plane fly round trip