Astudent got 34 pencils for school. if she sharpen 16 of the pencils before school what is her ratio of unsharpened pencils to sharpened pencils

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?

Jack did 3/5 of all problems on his weekend homework before sunday. on sunday he solved 1/3 of what was left and the last 4 problems. how many problems were assigned for the weekend?

In the geometric progression –3, 12, −48… what term is 3,072?