At a pet store, the ratio of cats to dogs is 7: 3, and the ratio of birds to dogs is 5: 6. if the pet store only has birds, cats, and dogs, then birds represent what percent of all animals at the store?

Students are given 3 minutes for each multiple-choice question and 5 minutes for each free-response question on a test. there are 15 questions on the test, and students are given 51 minutes to take it. how many multiple-choice questions are on the test?

Anormally distributed data set has a mean of 176.3 and a standard deviation of 4.2. what is the approximate z-score for the data value of 167.9? 2.00 −2.00 8.4 −8.4

If private savings 'v' = 0.75s and total savings 's' equals $4.20 billion, solve for public and private savings.