The difference of 4 times a number and 15 is -16. Find the number.

-1/4

Step-by-step explanation:

4x - 15 = -16

4x = -1

x = -1/4

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