Four times the sum of a number and -3 is 4 more than twice the number.

x = 8

Step-by-step explanation:

Let the unknown number be x.

4*(x + (-3)) = 4 + 2x

4x -12 = 4 + 2x

2x = 16

x = 8

9 x 8 divided by (5-3)=36

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.