You have only $1,000. the price of a tv-set is $1,500. can you buy the tv if you get 10% discount?

Another type of subtraction equation is 16-b=7. explain how you would sole this equation then solve it.

How can i differentiate this equation?

The weekly amount spent by a company for travel has an approximately normal distribution with mean = $550 and standard deviation = $40. a) what is the probability that the actual weekly expense will exceed $570 for more than 20 weeks during the next year? (note: one year = 52 weeks) b) what is the probability that actual weekly expenses exceed $580 for 10 or more, but 16 or fewer weeks during the next year?