Astore has 30 blue pens, 18 black pens, and 12 red pens in stock. you buy 3 blue pens, 9 black pens, and 3 red pens. find the probabilty of each event before and after your purchase.
a. randomly choosing a blue pen
b. randomly choosing a black pen
c. randomly choosing a red pen

Francis is getting new carpet tiles in his living room and den. his living room and den are connected. he needs to figure out how much carpet he needs and the cost involved. if each tile costs $2.00 per sq ft, how much would it cost to have new tile put in the den? a) $24 b) $36 c) $48 d) $54 plz awnser soon