An Investment of $12,000 is losing value at a rate of 4% each year. Write an exponential function to model the situation, then find the value of the Investment after 9 years.

Ann and betty together have $60 ann has $9 more than twice betty’s amount how much money dose each have

Write 5(6x+4)-2(5x-2) in the form a(bx+c) where a,b and c integers and a> 1

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?