How many different ways can 9 trumpet players in the marching band line up?

Ben bowled 124 and 188 in his first two games. what must he bowl in his third game to have an average of at least 160?

Jada has a monthly budget for her cell phone bill. last month she spent 120% of her budget, and the bill was 60$. what is jada’s monthly budget

A33 gram sample of a substance that's used to detect explosives has a k-value of 0.1473. n = noekt no = initial mass (at time t = 0) n = mass at time t k = a positive constant that depends on the substance itself and on the units used to measure time t = time, in days