In Damien's classroom, the ratio of boys to girls is 4:5. If there
are 12 boys, how many students
are there in all in Damien's
classroom

Glenda makes an online purchase for picture frames for $12.95 each and formats of $5.89 each the site says it taxes paid by the customer or 6.5% of the total purchase price shipping charges are based on the

Let f(x) = 5/x and g(x)=2x2+5x. what two numbers are not in the domain of f o g

Charlie tosses five coins.what is the probability that all five coins will land tails up.