The answer is
6X - 4 = 12 + 2X
The first one is y=6(x-2)^2+4 and the second one is y=-3/2(x+6)^2+4
A bike travels 7 feet in 1/3 of a second. at the same speed, how many feet will it travel in 5 seconds?
It would be 1/3rd because your last number would be 4 in the equation of 12 sandwiches.
A = 7
b = -18
c = -52
Do you know what the Quadratic formula is to solve?