Abackhoe can dig
5
10
of a ton of dirt in
1
6
of a hour. compute the unit rate by setting up a complex fraction and simplifying.

The unit rate is 3 tons per hour.

Step-by-step explanation:

Given,

A backhoe can dig   of a ton of dirt in   of an hour.

Thus we can write,

Hence, the backhoe can dig with the rate of 3 tons per hour.

c is the final answer! : )

$53.50

step-by-step explanation:

you have to subtract the amount of money chuck earned ($72.50) by the cost of the gas for the mower ($11.25) and the new string for the trimmer he bought ($7.75).

72.50-11.25=61.25

and then subtract $61.25 by the second thing he bought (the new string for the trimmer)

61.25-7.75=53.5

so in total it's $53.50 (53 dollars and 50 cents)