4. Kelsey obtains a loan with simple interest to buy a used car that costs $12,500. If Kelsey pays $850 in interest during the five-year term of the loan what was the rate of simple
Interest? (Hint: 1 = PRD

What are the constants in this expression? -10.6+9/10+2/5m-2.4n+3m

David estimated he had about 20 fish in his pond. a year later, there were about 1.5 times as many fish. the year after that, the number of fish increased by a factor of 1.5 again. the number of fish is modeled by f(x)=20(1.5)^x. create a question you could ask that could be answered only by graphing or using a logarithm.

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?