3 white shirts and 2 black shirts are 10 dollars per shirt. Which quantities in the advertisement represent a unit rate?
3 white shirts to 2 black shirts
2 black shirts for every 5 shirts
$10 per shirt
$50 per shirt

tangent

step-by-step explanation:

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.