Question 949878
S=Satellite; C=Communications; m=number of months
S=$49+$29m
C=$25+$37m
PROBLEM A:
S=C
$49+$29m=$25+$37m Subtract $25 from each side.
$24+$29m=$37m Subtract $29m from each side.
$24=$8m Divide each side by $8.
3=m ANSWER 1: Both companies cost the same at three months. 
PROBLEM B:
S=$49+$29(3)=$49+$87=$136 ANSWER Both companies will cost $136 for the first 3 months.
PROBLEM C:
After the break even time, the company with the lower monthly rate is the better deal. So Satellite Systems would be a better choice for 6 months.