Answer: 86
Step-by-step explanation:
Answer:
y = -3x + 5
Step-by-step explanation:
So, let's make these two values improper fractions so they're easier to work with. 
So, to get the rate he grew in those months we have:
And to get the rate he grew in one month we have to divide both our numerator and our denominator by 21 to get:
aka he grew 1.24 inches in a month.
It’s -10
Explanation: 8 x 5= 40
40/-4= -10