SOLUTION: Let g(a) represent the number of gallons of sealant needed to seal a bamboo floor with area a. Let c(s) represent the cost of s gallons of sealant. Which composition makes sens

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Question 386597: Let g(a) represent the number of gallons of sealant needed to seal a bamboo floor with area a. Let c(s) represent the cost of s gallons of sealant. Which composition makes sense: (c ◦ g)(a) or (g ◦ c)(s)? What does it represent?
(HAVING TROUBLE WITH THIS ONE)

Answer by Jk22(389) (Show Source):
You can put this solution on YOUR website!
c o g(a) is the application of c on g.

here g gives the number of gallons, and c their price, hence (c o g) makes sense.

g o c would take the price of n gallons but then those are not an area, and hence cannot be argument of g, hence g o c has no sense.

(c o g)(a) were the price of gallons to cover a floor with area a.