Sammy bikes 3 miles every night for exercise. It takes him exactly 1.75 hours to finish his ride. Assuming he rides at a constant rate, write an equation that represents how many miles, , Sammy can ride in hours. Show all work.

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?

A. 127 cm^2 b. 144.5 cm^2 c. 172 cm^2 d. 50 cm^2

21 type the correct answer in the box. use numerals instead of words. if necessary, use / for the fraction bar. the solution set of n2 - 14n = -45 is { (separate the solutions with a comma)