The mean age of 5 people in a room is 39 years. A person enters the room. The mean age is now 40. What is the age of the person who entered the room

1.5%

step-by-step explanation:

$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)

it is b)

hope this : )

step-by-step explanation: