In how many ways can a music teacher arrange 24 students in 3 rows?

There are 12144 ways to arrange 24 students in rows.

Step-by-step explanation:

Since we have given that

Number of students = 24

Number of rows = 3

We need to find the number of ways to arrange the 24 students in 3 rows.

We will use "Fundamental theorem of counting":

There are 24 options for the first row.

There are 23 options for the second row.

There are 22 options for the third row.

So, Number of ways becomes

Hence, there are 12144 ways to arrange 24 students in rows.

for this pair of functions g(x)=x-2 and f(x)=|x| is (g o f)(a)= |a| -2

step-by-step explanation:

g(x)=x-2

f(x)=|x|

(g o f)(a)=?

(g o f)(x)=g(f(x))

(g o f)(x)=g(|x|)

(g o f)(x)=|x|-2

(g o f)(a)=|a|-2