Hello.
A composite number has more than 2 factors; it's divisible by 1, itself, and something else.
Let's find the composite numbers smaller than 18.
The composite numbers are
4, 6, 8, 9, 10, 12, 14, 15, 16.
I hope it helps.
Have a nice day.

Answer:
Step-by-step explanation:
18pts
((r²+7r+10)/3) × (3r-30)/(r²-5r=50)
= Factoring the expression (r²+7r+10) we get (r+2)(r+5)
Then multiply it with the other numerator, we get
= (r+2)(r+5)(3(r-10)
Then we factorise
= (r²-5r-50) = (r+5)(r-10)
Multiplying it with the other denominator, we have;
= 3(r+5)(r-10)
Therefore dividing
(r+2)(r+5)(3(r-10)/(3(r+5)(r-10) we get;
= r+2
Therefore, the correct answer is r+2