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this is question 6 below

A student goes to the library. Let events B= the student checks out a book and D = the student checks out a DVD Soppose thut P(B) =0.20. P(D)=0.50 and P(B AND D )=0.10. Find P(D|B) in Question 6. (Please show all your work in detail.) A company manufactures a 65 -inch smart TV that sells to retailers for $770. The cost of making x of these TVs for a month is given by the cost function C(x)=300x+164,500. Find the break-even point for the company