Suzie made a mistake in the following problem.

the mistake was made in line only input the number of the first incorrect line.

line 1
7(6) ÷ 5 + 42
line 2
7(6) ÷ 5 + 16
line 3
42 ÷ 5 + 16
line 4
42 ÷ 21
line 5
2

it is not line 2. The 16 comes from 4^2 which is 4.4=16. And the correct one is line 4, since it supposed to divide 42 by 5 and add the result to 16

Step-by-step explanation:

47

step-by-step explanation:

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