Cost of washer: $720
Cost of dryer: $240
I've taken this test before and got it right, so you're good :)
The mistake she made was timesing the 6 by the -7.5 as there is no x after the 6
Therefore:
-3.8(-7.5) +6
28.5+6 =34.5
Right. Your answer is still no because your x-value needs to be positive.
Answer: 3 1/3 miles
Step-by-step explanation: