Jeremiah, leah and pascal are sharing a gift and each contributes $12. if ebenzer agrees to contribute as well and all four pay and equal amount for the same gift, how much does each person pay?
{the answer key says 3, and i'm confused as why it is.}

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