27 square units is the answer
Answer: -13-3X
Combine like terms.
-6-7= -13
13X- 16X= -3X

P<6 is the solution
Be reminded <> change direction when you divide or multiply by a negative number.
Answer:
$45 more
(but honestly I think I would spend longer mowing their lawns to try and make some more profit)
Step-by-step explanation:
Mr. Smith requires 4 1/2 hours.
Mrs Jones requires 7 1/2 hours.
7 - 4 = 3
3 * 15 = $45