To be able to compare the rates, we will write them in fraction form.
The fraction that represents Joe's rate is:

and the fraction that represents Bob's rate is:

Simplifying the above fractions, we get:

Since:

then Bob and Joe did not work at the same rate.
Answer:
No, Bob and Joe did not work at the same rate.
Answer:
the exponent is 6............
She can put in an array by doing this 4 down and 8 across because 8×4=32
The answer is 1/9:
.9*10=9
9^-1=1/9
The volume of the box is either 40 or 50
hope it helps