Isabel's Coffee Shop makes a blend that is a mixture of two types of coffee. Type A coffee costs Isabel $5.50 per pound, and type B coffee costs $4.10 per pound. This month, Isabel made 138 pounds of the blend, for a total cost of $684.80. How many pounds of type B coffee did she use

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?

Bella want to know what the students at her school think of her show. which is the best group to survey to find this information a. go to the mall and ask all of the students she recognizes from school b. ask her viewers to call in durning an episode of the show c. get a list of students at her school from the office and use a random number generator to pick 30 of them d. get a list of students at her school from the office and pick the first 30 students on the list

How can (square root of 25) ^2 be rewritten?