Evaluate: y − (z + z^2); use y = 10, and z = 2 (Hint: "^" means exponent)

Can someone me with this problem . show your work .

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?

In an improper fraction, is the numerator equal to, less than, or greater than the denominator