The length of a rectangle plus its width is
13 cm. The area is 12 square cm. What are
the length and width of the rectangle?

Volume of a cylinder with a radius of 13 in and height of 30 in

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?

Glenda makes an online purchase for picture frames for $12.95 each and formats of $5.89 each the site says it taxes paid by the customer or 6.5% of the total purchase price shipping charges are based on the