Alandscaper can plant 2 trees per hour. write and solve a direct variation equation to find how many trees they can expect to plant in a 5.5 hour shift.

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?

Two variables, x and y, vary inversely, and x=12 when y=4. what is the value of y when x=3?

You are designing a rectangular pet pen for your new baby puppy. you have 30 feet of fencing you would like the fencing to be 6 1/3 feet longer than the width