14 points
ken and brad recently had their first child. they spent $840 on clothes for the new baby, and their annual net income is $28,000. what % of the income did they use to buy baby clothes?

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?

Labc is reflected across x = 1 and y = -3. what are the coordinates of the reflection image of a after both reflections?

Two variables, x and y, vary inversely, and x=12 when y=4. what is the value of y when x=3?