Drag each expression to show whether it is equivalent to 36x + 9, 9(4x – 1), or (4 • 9x) + (4 • 2).

1) . You can factor 9 from both terms and you get

2) . You can rewrite 36 as 9*4 and 8 as 4*2, so you end in the last box

3) . If you expand this expression, you have 36x+8, so you are in the same case as (2)

4) . If you distribute the 9, you have 36x+9, so you end in the first box

5) Evaluate both multiplications: 9*4x=36x, 9*1=9. So, you have 36x+9, and again you end in the first box

6) Similarly, you have 3*12=36 and 3*3=9. So, the final result is again 36x+9.

step-by-step explanation:

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.