"john and two friends rent a canoe at a park. each person much rent a life jacket. if the bill for the rental of the canoe and life jackets is $41, how many hours did they rent the canoe? " i have no idea if this question even has enough information.

information is missing from the question. We don't know how much per hour for the canoe,

687.09 dollars       happy now

step-by-step explanation: 6870

1857 times .63 equals 1169.91 subtract that from 1857 you get 687.09

c.

step-by-step explanation:

because first you have to add the 4x, 9x, and the 7x together and you get 20x and then you add the last numbers up and you get 5and then you put the subtraction sign in there and that's how you get the answer.