40. Construct Arguments Marcia and
David each multiplied 5.6 x 10 and
7.21 X 100. Marcia got 0.56 and 0.721 for
her products. David got 56 and 721 for
his products. Which student multiplied
correctly? How do you know?

David got it correctly

Step-by-step explanation:

5.6 x 10=56 not 0.56

7.21 X 100=  721 not 0.721

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

answer: all of the odd numbers were opened

the first person was the one that was opening all of the lockers. since one is odd, this causes all of the odd number lockers to be opened in the end.