Solve -9 2/7 - (-10 3/7).
A. - 1 1/7

B. 1 1/7

C. 19 1/7

D. 19 5/7

1 5/7

Step-by-step explanation:

-9 2/7 -(-10 3/7) recall -×- = +

-9 2/7 +10 3/7

1 2+3/7

1 5/7

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