Find 2^30+2^29/2^31+2^30 number system

Apath 3 m wide runs around the inside of a square park inside 60 m. find the area of the path. pls

0if x and y vary inversely and y=6 as x=7, what is the constant of variation?

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?