Simplify the expression (12x^2y^3)(2x^3y)^2

Fractions can be added and subtracted only if they're fractions. a. like b. proper c. improper d. unlike

Monthly water bills for a city have a mean of $108.43 and a standard deviation of $32.09. find the probability that a randomly selected bill will have an amount greater than $155, which the city believes might indicate that someone is wasting water. would a bill that size be considered unusual?

Two corresponding sides of two similar triangles are 3cm and 5cm. the area of the first triangle is 12cm^2. what is the area of the second triangle?