Emily needs enough fabric to make 8 hats, If each hat requires 1 217 feet of 4 fabric, how much fabric will she need to make 8 hats?

Scrub a dub toothbrushes are $4.00 each. there is a 10% discount, but there is also a 6% sales tax after the discount is applied. what is the new price after tax? round to the nearest penny

Simplify (1/2)4th power a. (1/16) b.(1/8) c.(1/4)

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.