Hey fertilizer covers 5/6 square foot in 1/2 hour the unit rate is

ft² per hour

The unit rate is the amount covered in 1 hour

The half hourly rate is given thus multiplying by 2 will give hourly rate

unit rate = 2 × =

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.