17th Question 4 of 7 This quiz 7 point s possible This question 1 point s possible Think 10 30 60 65 69 Submit quiz Calculate the given expression mentally using easy combinations Write a sequence of numbers indicating intermediate steps in your thou process The first one is done for you a 9 14 5 1 6 28 2 4 b 6 9 3 5 8 12 7 8 b Select the choice below that shows a sequence of numbers indicating intermediate steps in your thought process and fill in the final answer in the answer box in your choice