Damien wants to know what percent of the students at his school attended the school dance. He determines the total number of people at the school, n, and the total number of people who went to the dance, d. Which expression can Damien use to determine the percent?
A. d – n
B. d – (n – d)
D. (n – d)/d
Dory went hiking along the Appalachian Trail in Stokes State Forest. She hiked about 100 meters before realizing she forgot her water bottle. About how many feet had she hiked?
The students at Sanders Elementary School sold a total of 525 raffle tickets for their annual fundraiser. In a raffle, people buy tickets hoping to win a prize. For this fundraiser, only 1 ticket will be drawn and 1 prize given away. Sergio bought 15 tickets. What is the probability that Sergio will win the prize?