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Step-by-step explanation:

10.2 x 0.20 = 2.04 (Find 20% of 10.2)

10.2 + 2.04 = 12.24 (Add the value from step one.)

The answer is C, 12.24

the answer is C because

10.2 times 1.20 is 12.24

(you're multiplying by 1.20 because the rain fall last year was 120% of the rainfall 2 years ago.)

from the figure we get,

the x axis shows   the months and,

the y-axis shows the number of satisfied customer.

each line or each cell in upward direction (y-axis) shows 500.

the appropriate scale for the y - axis is: -

a = 2000 customers

b = 4000 customers

c = 6000 customers

d = 8000 customers

e = 10000 customers

f = 12000 customers

g = 14000 customers