Araffle is being held to raise money for wildlife conservation efforts. ten different gift cards are being awarded. if 3,125 people each bought a single raffle ticket, which of the following expressions represents the number of ways the gift cards can be awarded? assume that each person can win only once.

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.

I’m still confused on how to work the percentages

10x − 5y + 14 = 0 whats the answer pls