2. Sara took skydiving lessons. The Skydiving Shack charges $30 per hour for lessons. Sara also gave her Skydiving Instructor a tip of $15. (a) Define the unknown in the scenario and assign it a letter or symbol.

(b) Write an expression to represent the amount of money that Sara paid for her Skydiving adventure.

Which type of graph would allow us to quickly see how many students between 100 and 200 students were treated?

Aquadrilateral has exactly one pair of parallel sides. which name best describes the figure?

You just purchased two coins at a price of $670 each. because one of the coins is more collectible, you believe that its value will increase at a rate of 7.1 percent per year, while you believe the second coin will only increase at 6.5 percent per year. if you are correct, how much more will the first coin be worth in 15 years?