Isaac has a piece of rope that 5 yards long. Into how many 1/2 - yard pieces of rope isaac can cut?

10

Step-by-step explanation:

So there are 5 pieces of rope, if you cut them all in half then that would double the number.

10

Step-by-step explanation:

5 divided by 1/2 is 10

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.