Three out of every 10 pairs of skis sold by snow sports are cross-country skis. snow sports sold 450 pairs of skis during the winter season. how many of the skis were likely to have been cross-country skis? a 443(b) 135(c) 45d 30

The answer isnt c.
It is very simple. First divide 450 by 10
You get 45
This is the amount if there was only ONE SKI sold every 10

You have to multiply 45 by 3 to find the answer.

You will get 135

So the answer in fact is (B)

I hope i helped plese press 'thanks' :)