There were 72 runners to start a race. in the first half of the race, 13 of them dropped out. in the second half of the race, 23 of the remaining runners dropped out. how many runners finished the race?

Marco has $38.43 dollars in his checking account. his checking account is linked to his amazon music account so he can buy music. the songs he purchases cost $1.29. part 1: write an expression to describe the amount of money in his checking account in relationship to the number of songs he purchases. part 2: describe what the variable represents in this situation.

The weekly revenue for a company is r = 3p^2 + 60p + 1060, where p is the price of the company's product. what price will result in a revenue of $1200.

The surface area of the triangular prism is .