Each equation below is followed by several stories. Select all of the stories that can be represented by the equation. If none of the stories can be represented.select "None of the above". (a) x-8=56 Raina and her friend have a combined total of 56 tickets. Raina has x tickets and her friend has 8 tickets. Raina had x tickets Then she gave her friend 8 tickets, Raina now has 56 tickets. Raina had x dollars Then she bought a football game ticket for 8 dollars. Raina now has s6 dollars A football game ticket costs 8 dollars. The cost for x tickets is is 56 dollars. 56 None of the above (b) 9x=99 David finished reading his book in 9 days.Each day, he read pages. His book has 99 pages. o has 99 pages remaining. A book is pages long. David read 9 pages. He David finished reading his book in x days.Each day, he read 99 pages. His book has 9 pages. David read x pages yesterday and 9 pages today. Over the two days,he reas 99 pages. None of the above