3x - y = 7
6x - y = 10

when solving this system of equations by elimination, which could be the resulting equation when a variable has been eliminated?
a) 9x - 2y = 17
b) -3y = 24
c) -3x = -3
d) 9x = 17
elim

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?