Give a recursive definition for the set x of all natural numbers that are one or two more than a multiple of 10. in other words, give a recursive definition for the set {1, 2, 11, 12, 21, 22, 31, 32, }.

Which problem would you use the following proportion to solve for? 24/x=40/100 a. what is 40% of 24? b. what percent is 24 of 40? c. twenty-four is 40% of what number? d. forty percent of 24 is what number?