Answer: d
Step-by-step explanation:
use the formula 
Answer:
1.71 × 10^8 gallons
Step-by-step explanation:
1.9 × 10^7 = 19,000,000
19,000,000 × 9 = 171,000,000
171,000,000 in scientific notation is 1.71 × 10^8
Answer: B
Step-by-step explanation:
(x + 2)(- 8x + 1) are your factors.