Answer:
15
Step-by-step explanation:
3 options x 5 options = 15 total options
Answer:
12
Step-by-step explanation:

If you multiply both terms by 100, the result will be the same, because 100/100=1. You can therefore rewrite this as 48/4, which is equal to 12. Hope this helps!
Answer:
Step-by-step explanation:
He set the factored expressions equal to eachother
Answer:
Friction is a force that opposes motion between any surfaces that are touching. Friction occurs because no surface is perfectly smooth. Rougher surfaces have more friction between them. ... Friction produces heat because it causes the molecules on rubbing surfaces to move faster and have more energy