Bob has in his pocket a number of pennies, five times as many nickles as pennies, and 6 more quarters than pennies. the coins amount to a value of $2.52. find the number of pennies

Amuffin recipe, which yields 12 muffins, calls for cup of milk for every 1 cups of flour. the same recipe calls for cup of coconut for every cup of chopped apple. to yield a batch of 30 muffins, how much flour will be needed in the mix?

What is the name used to describe a graph where for some value of x, there exists 2 or more different values of y?

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?