A recipe for waffles calls for 2 cups of flour and 3 teaspoons of baking powder. Jason uses 4 cups of flour.

How much baking powder should he use?

A. 5 teaspoons
B. 6 teaspoons
C. 8 teaspoons
D. 12 teaspoons

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?

Find the values of y: 3y^3(y^2+ 2/3y)=0

Simplify this expression. 8x 16(x + y)