A clothing store determines that in order to sell x shirts, the price per shirt should be p ( x ) = 100 − x dollars. Getting x shirts from the supplier costs the store C ( x ) = 1 , 600 + 20 x dollars. If the store’s revenue from selling x shirts is R ( x ) = x ⋅ p ( x ) , for what value of x will the store’s cost and revenue be equal?

The blue whale is the largest animal living on the earth. the average blue whale measures 100 feet long (30 meters) and weighs 300,000 pounds (136,000 kilograms). a whale’s head is 1⁄3 of the length of its body. a new baby whale is 1⁄4 the length of a grown whale. the average man is 1⁄17 the length of a blue whale, and 1⁄1,818 its weight. a human baby measures 1⁄4 of the length of an adult. calculate the following information: how long is a whale’s head? how long is a new baby whale? how tall is the average man? how much does the average man weigh? how tall is the average human baby?

Anyone know? will mark brainliest if correct!

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?