The number of open parking spaces in a lot and number of cars already parked in a lot are related. Identify the dependent variable in this relationship.

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

What is 32+4 x (16 x 1/2) -2 show your work}

Brian, chris, and damien took a math test that had 20 questions. the number of questions brian got right is 14 more than the number of questions chris got right. damien correctly answered 2 less than the number of questions chris answered correctly. if brian and damien have the same score, which statement is true?