The diagram shows a rectangle with length 7a and width 2a. Write an expression, in its simplest form, for
(a)
the perimeter,

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.

d. corresponding side lengths in similar triangles are proportional in length.

step-by-step explanation:

there is no picture in order for this question to be answered