Answer:
18000
Step-by-step explanation:
the answer is 18000
900 gallons multiply 20
so our answer is =18000
20 times
Here is a chart:
3,13,23,30,31,32,33,34,35,36,37,38,39,43,53,63,73,83,93.
It appears 20 times. Hope this helps!
C. 155.5 cm2
area = 5*15 + (15+8)*7/2 = 75 + 80.5 = 155.5 cm2