Answer:
When solving a rational equation, start by grouping or canceling out like terms. So cancel out x on the numerator and denominator of 2+7x/x. While the equation itself results in a contradictory statement - 5=9, the first step to figuring this out would be canceling out x.
I think b...............................
A. 45 x 0.07 = 3.15 increase
B. 45 + 3.15 = 48.15 new monthly cost
It would be 30 because when you add 5z to a -5z those cancel out so what you have left would be 20+10 and you would add those together and get 30.
The minimum is 21 cause its the smallest.
Maximum should be 87.
I believe this is correct.