first is half of michels age, 6, then multiply it by 2, which is samanthas age, and then multiply that by 3, which is bens age.
Michelle is 12, half of her age is 6 +2 ( which is the two years of Samantha's age) 8 x 3= 24
I don't know if that's correct, just trying to help.:)
first one is a: renaming a fraction. second one is c: de-c
my explanation is that these were the answers on edg : )