Amusic teacher budgets $150 for a new book. the minimum cost of a new book is $12. how many books can she buy? is this a minimum or a maximum amount? explain.

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

3x + 4y -25 =0 represents the amount of change sianna should recieve