Ok I got you First Distribute 9(3 f +2)-7f
27 f +18 -7f
Step 2 combine like terms
Step 3 common factor
Answer: 2(10 f + 9)
Answer:
Average change in temperature each day = 5 degrees/day
Step-by-step explanation:

1. It is extracted from the ground.
2. It took years to form.
Answer:21
Step-by-step explanation:12 times three is 36 and 7 times 3 is 21