If mary has two dogs, a cat, a fish, rat, and hamster. her fish and rat die, how many pets does mary have if she buys a bird?

The ratio of men to women working for a company is 4 to 5 . if there are 90 women working for the company, what is the total number of employees?

Describe the domain and range of y=2(3)^x-2+5

Assume that the weights of quarters are normally distributed with a mean of 5.67 g and a standard deviation 0.070 g. a vending machine will only accept coins weighing between 5.48 g and 5.82 g. what percentage of legal quarters will be rejected? round your answer to two decimal places.