Kieran's dance class starts at 4: 30and ends at 6: 15 how long was he class

An animal shelter has 21 puppies. if the puppies are 28% of the total dogs and cat population how many dogs and cats are in the animal shelter

Which expression can be used to determine the slope of the line that passes through the points -6, three and one, -9

Tom wants to order tickets online so that he and three of his friends can go to a water park the cost of the tickets is 16.00 per person there is also a 2.50 one-time service fee for ordering tickets online write an expression in term of n that represents the cost for n ordering tickets online