PLS HELP NEED HELP DUE

Step-by-step explanation:

-x + 5y - 7 = 0

-x + 5y = 7 (I)

4y - 10 = 5x

-10 = 5x - 4y

5x - 4y = -10 (II)

             -x + 5y = 7 (I)

             5x - 4y = -10 (II)

Multiply equation (I) by 5.

(I)*5     -5x + 25y = 35

(II)        5x -   4y    = -10    {Now add and x will be eliminates}

                  21y   = 25

y = 25/21

Substitute y value in Equation (I)

-x + 5*25/21 = 7

-x + 125/21 = 7

-x = 7 - (125/21)

-x = (147/21) - (125/21)

-x = (147-125)/21

-x = 22/21

x = -22/21

answer:

sometimes

*i think

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