Please help me fast I’m really confused

13b-10

Step-by-step explanation:

6b+7b=13b

13b-10

13b-10

Step-by-step explanation:

you just have to combine like terms so you would add 6+7 and get 13b-10

$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)

step-by-step explanation:

the answer is 128