-2(a+3)+4a=18 HELP-ME PLEASEEE

Ared balloon starts at 7.3 meters off the ground and rises at 2.6 meters per second. a blue balloon starts at 12.4 meters off the ground and rises at 1.5 meters per second. when will the balloons be at the same height?

Find the zeros of the function. write the smaller solution first, and the larger solution second f(x)= (x+6)^2-49

Which equation represents a line that is parallel to the line whose equation is 3x-2y=7( show all work)