Aimee must add together the following numbers:
3.50 + 4.00 + (−1.25) + (−7.50) + 5.25 + 2.00
as her first step, aimee writes:
(3.50 + (–7.50)) + (–1.25 + 5.25) + (4.00 + 2.00)
which is the best explanation of what aimee did in this step?
a. aimee used the associative and commutative properties to put opposite numbers together.
b. aimee used the identity property to put numbers with the same values after the decimal point together.
c. aimee used the associative and commutative properties to put numbers that are easy to add next to each other.
d. aimee used the inverse property to pair each positive decimal with a negative decimal so that they will cancel out.

unless you made a typo, the answers are both a and c.

step-by-step explanation:

1.5/3 is .5 whereas 3/9 is .3333333 not proportional

22/33 is .66666 and 4/6 is also .66666 proportional

2/4 is .5 whereas 142/213 is .66666 not proportional

14/7 is 2 and 7/3.5 is also 2 proportional

you could've also checked it by doing this simple division:

if the larger fraction divides with the smaller fraction to equal 1, it is proportional. so let me show you what i mean:

when i divide 22/33 by 4/6 i get 1, so we know it is proportional, and it is the same with 14/7 and 7/3.5. now if i divide 3/9 by 1.5/3 i get .66666 so therefore we know it is not proportional.

there are many ways to do this so i wanted to show you some possible ways.

7x7=4 so if u carry the 9 it will be 33