Rooms-To-Go has a promotion that has no interest if paid in full in 3 years. John and Brittany buy a bedroom suite for $2,100. If they pay the minimum payment of $40 per month, how much do they have to pay in the last month to avoid interest charges?

step-by-step explanation: it is d

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.