Which expression represents the number of ways that a president and vice president can be chosen out of a group of 15 people?

The class wants to raise a total of $750.if they receive a profit of $1.25 from each candybar sold, how many bars must they sell to reachtheir goal

The highest point on earth is the peak of mount everest if you climb to the top you would be approximately 29,035 feet above sea level at remembering that amount is 5280 feet percentage of the height of the mountain would you have to climb to reach a point 2 miles above sea level

1) you deposit $2,500 in an account that earns 4% simple interest. how much do you earn in eight years?