729-243=486
486×3=1458
1458+729=2187(x=7)
1458×3=4374
4374+2187=6561(x=8)
4374×3=13122(average rate of change for interval 8 to 9)
13122+6561=19683(x=9)
Ans: B
2.80 is more than 2, i would round it.
So sorry if this is wrong :(
Answer:
7 mpg
Step-by-step explanation:
21
