Thomas buys a half dozen plastic skeletons to decorate for his Halloween party. The total amount he pays is $90. What is the unit rate and unit price for each skeleton?

Tom bought $300 worth of skeleton decorations. How many plastic skeletons did he buy?

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.

What is the 17th term in the arithmetic sequence in which a6 is 101 and a9 is 83

For a function f(x), a) if f(7) = 22 then f^-1(22) = b) f^-1(f(c)) =