You have a restaurant bill of $46.32. if you are taxed 7.50% and decide to tip your server 20%, how much is your total?
a. $59.75
b. $59.05
c. $58.92
d. $58.8

Terri makes a quilt using three sizes of fabric squares the side lenght of each fabric square is the square root of the area

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?

Set $r$ is a set of rectangles such that (1) only the grid points shown here are used as vertices, (2) all sides are vertical or horizontal and (3) no two rectangles in the set are congruent. if $r$ contains the maximum possible number of rectangles given these conditions, what fraction of the rectangles in set $r$ are squares? express your answer as a common fraction.