Answer:
#6 = 1; #7 = A (5 gallons)
Step-by-step explanation:
#6 it is 1 because you are suppose to divide 10% of 50 which gave yuu $5 and then divide 5 by 20% which is 1
M= 20 because the rate of change is -3.
The answer is 170 because the number next to it is not 5 or more