Respuesta :

There are 8 students in a art club. There are 3 times as many students in chorus. How many students are in chorus?

We don't know how many students are in chorus. Use  n as the students.

n = 8×3
n = 24
The value of n is 24.
So, there are 24 students in chorus.
There are 20 cookies in a jar. 15 of them are chocolate chip. How many are raisin? (use r to represent the number of raisin cookies).

20-15=r
20-15=5

So there are 5 raisin cookies in the jar.