Answer:
-k+8k=7k is the solution
B
Step-by-step explanation:
It seems like the answer would be B since 0.4 x 0.9 = 0.36 and the intersection for answer choice B is 36 grid blocks.
Answer: 1 minute and 43 seconds faster
20
f(n)=n^2-n
f(-4)=(-4)^2-(-4)
f(-4)=16+4
f(-4)=20