It be 81.
You have to take half of -18 which is -9, and square that, which is 81.
3.2% per year
Hoping that helps :)
Answer:
x = 1
Step-by-step explanation:
Answer:f(x) is the total number of miles he runs during each month. He starts with 0.5 miles and adds (+) 2 miles each month. Therefore, x must be the number of months. For example, month 1 (x) he runs 2.5 miles: 2.5 = 0.5 + 2(1); x=1.
