Answer:
-0.2
Step-by-step explanation:
Gradient/slope = 
The total amount paid in monthly payments is found by multiplying $70 by 10. This is the only information that is needed to find the amount paid over 10 months.
70 x 10 = $700
Ennifer will pay $700 in monthly payments.
Isn't the only thing you have to do is since a cube has 6 sides than you would have to do 150 divided by 6. If I am correct.