The length of a rectangle is 6 m longer than its width.
If the perimeter of the rectangle is 40 m, find its area.

=91 cm squared

Step-by-step explanation:

LET THE WIDTH BE X

the length is therefore x+6

2(x)+2(x+6)=40

2x+2x+12=40

4x=28

x=7

area=7×7+6=91

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.