7.4 + 4.45 =
a 11.85
b 2.95
c -2.95
d -11.85

okay wait before i answer, is this for your points on a graph?

$650 per month plus utilities

step-by-step explanation:

just based on the info you gave, it would seem more cost effective to rent at $650 per month plus utilities.   if utilities are, in fact, $150 per month, your monthly living costs would be $800 as opposed to the other option of $825.