Ray wants the larger of two aquariums. one aquarium has 20 in. by 20 in. and has a height of 18 inches. the other aquarium has a base that is 40 in. by 12in. and has a height of 12 in. which aquarium is larger? by how much?

answer: first option i.e. 'a' is correct.

step-by-step explanation:

since we have given that

number of minutes to wrap a small gift box = 4 minutes

we need to find the number of gifts to be wrapped in 5 minutes

since there is a direct variation, as the number of minutes will increase with   number of gifts to be wrapped.

so, let the number of gifts to be wrapped in 5 minutes be x.

so, it becomes,

hence, first option 'a'   is correct.