A school bus has 25 seats, with 5 rows of 5 seats. 15 students from the first grade and 5 students from the second tread travel in the bus. How many ways can the students be seated if all the first grade students occupy the first 3 rows? A. 25P20
B. 5P5*20P15
C. 15C15*10C5
D. 15P15*10P5
E. 15P15*10C5

yeah and the opposite of cheating is studying ( you should try it some time)

step-by-step explanation:

c.

step-by-step explanation:

she should of added 9^2 and 12^2. that is because it is a^2+b^2=c^2. c^2 is the hypotenuse and should always be bigger than the other two numbers. which is why she should of added 9 squared and 12 squared together instead of 15 squared.

c

step-by-step explanation:

yes.. it's proven to be 36.