Pls help and explain.

b,d, and e

Step-by-step explanation:

because if you think about it, it can only hold 2:3 as a ratio. so if you do the first one as 2 then the second on would have to be 1 greater than the first number.

a) adding two circles on the left and a square on the right.

Step-by-step explanation:

on the right, there is a square and a triangle

on the left, there are two circles and a triangle

both sides have a triangle so you don't need to worry about that

to balance the hanger, add what is missing:

the left is missing two circles

the right is missing a square

therefore, add 2 cicles to the left and a square to the right