A family worked all day building a sandcastle on the beach. As they were building the castle they recorded the number of pails of sand that were used. In all, the creation used 20 pails of sand. Each pail was cylindrical in shape, had a radius of 5", and was 10" in height. How many cubic inches of sand was used in building the family's castle? let pi=3.14

Which point on the x-axis lies on the line that passes through point c and is parallel to lino ab?

3.17 scores on stats final. below are final exam scores of 20 introductory statistics students. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 57, 66, 69, 71, 72, 73, 74, 77, 78, 78, 79, 79, 81, 81, 82, 83, 83, 88, 89, 94 (a) the mean score is 77.7 points. with a standard deviation of 8.44 points. use this information to determine if the scores approximately follow the 68-95-99.7% rule. (b) do these data appear to follow a normal distribution? explain your reasoning using the graphs provided below.

Erik buys 2.5 pounds of cashews. if each pound of cashews costs $7.70, how much will he pay for the cashews?