Please help me with this question PLEASE

Apositive number a or the same number a increased by 50% and then decreased by 50% of the result?

Acompany produces packets of soap powder labeled “giant size 32 ounces.” the actual weight of soap powder in such a box has a normal distribution with a mean of 33 oz and a standard deviation of 0.7 oz. to avoid having dissatisfied customers, the company says a box of soap is considered underweight if it weighs less than 32 oz. to avoid losing money, it labels the top 5% (the heaviest 5%) overweight. how heavy does a box have to be for it to be labeled overweight?

Which graph has figures that can undergo a similarity transformation to justify that they are similar? (obviously not the third one)