Make both sides powers of 3:

Make both sides powers of 2:

Answer:
4.04
Step-by-step explanation:
2.84 + 1.2 = 4.04
13km i think / that maybe wrong too
Answer:
n6
Step-by-step explanation:
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