N2+40-28=
Combine like terms
n2+40-28=n2+12
Factor out 2
n•2+12=2(n+6)
Therefore the answer is 2(n+6)
There would be 138 students in 6 classes because first you'd divide 207 from 9 and get 23 then you'd multiply 23 to 6 and get 138.
Th sale price of the tennis racket is 32$
Hope this helps you!
45
1080 divided by 24
45
45 5lbs per hour
It is a whole number, and is positive
