we are given

we can move 10 on right side


we cancel -1

we can rewrite right side

we can compare exponents
and we get
.............Answer
3/3=1 and 7/8 is < 1 so 3/3 is bigger
In twelve years Mary will be 45 and her son will be 23.
1. 12*100 - 12*5
You would use the distributive property to get this equation (it is equivalent to the original one)
2. Um... There's no actual story for this problem; sorry I can't solve this problem