April went to a shopping mall. She spent $28.95 on a jacket, $12.75 on a belt, and $6.59 on socks, before tax. The tax rate was 7.5%.

F(n + 1) = f(n) – 8. if f(1) = 100, what is f(6)?

The volume of gas a balloon can hold varies directly as the cube of its radius. imagine a balloon with a radius of 3 inches can hold 81 cubic inches of gas. how many cubic inches of gas must be released to reduce the radius down to 2 inches?

Monitors manufactured by tsi electronics have life spans that have a normal distribution with a standard deviation of 1800 hours and a mean life span of 20,000 hours. if a monitor is selected at random, find the probability that the life span of the monitor will be more than 17,659 hours. round your answer to four decimal places.