Carly wants to purchase a larger fish for her aquarium. The aquarium currently holds 300 cubic inches of water. In order to get the larger fish, she must triple the linear dimensions, which means buying a larger aquarium. How many more cubic feet of water will the new aquarium hold ? (Hint - subtract the new volume and the original volume.)

The management of a supermarket wants to adopt a new promotional policy of giving a free gift to every customer who spends more than a certain amount per visit at this supermarket. the expectation of the management is that after this promotional policy is advertised, the expenditures for all customers at this supermarket will be normally distributed with a mean of $95 and a standard deviation of $20. if the management wants to give free gifts to at most 10% of the customers, what should the amount be above which a customer would receive a free gift?

Erinn wrote the equation –5x + 4y = 32 to represent her hourly wage (y) and how this wage has changed during each year that she worked at a company (x). what is the rate of change in erinn's hourly wage per year?

If p(a) = 0.70 and p(b) = 0.20, then a and b are independent events if