1. The mass of Denise's rock sample is 684 grams. The mass of Pauline's rock sample is 29,510
centigrams. How much greater is the mass of
Denise's sample than Pauline's sample?

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

the answer is y < -3 or   y > 3

-3y > 7 + 2

-3 y > 9

y < -3

answer: the answer for that is 22/3