Kiran wrote the expression x - 10 for this number puzzle: “Pick a number, add -2, and multiply by 5.” Lin thinks Kiran made a mistake.
a. How can she convince Kiran he made a mistake?
b. What would be a correct expression for this number puzzle?

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?

You buy five cds at a sale for $5.95 each. write an expression for the total cost of the cds.then use the distributive property and mental math to evaluate the expression.

Why is studying fractions important