A new novel is 540 pages. Emily has read 192 pages in 6 hours. Maria has read 170 pages in 5 hours. Who reads faster Emily or Maria? How long will it take Maria to read the entire novel at her current rate

How to do this , and can some one explain

Logan wants to know how many skateboards have defective parts. he inspects 20,000 skateboards and keeps track of the number of defects per board. use his probability distribution table to find the expected value for defects on a skateboard.

Which is greater, 7 p 5 or 7 c 5? 7p5 7c5