You invest $275.00 in a money-market account that pays simple interest at a rate of 10%. how long must you leave your investment in the money-market account if you expect to earn $27.50 in interest? a. 0.01 months c. 2 years b. 1 years d. 1 months

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.

Delbert keeps track of total of the total number of points he earns on homework assignments, each of which is worth 60 points. at the end of the semester he has 810 points. write an equation for delbert’s average homework score a in terms of the number of assignments n.

Find the distance between c and d on the number line c=3 and d=11