kellimack85 kellimack85 23-06-2021 Mathematics contestada The sum of a number and 20 is no more than the sum of the square of the number and 9. Which of the following inequalities can be used to determine this unknown number? A. x + 20 ≤ (x + 9)2 B. x + 20 ≤ x2 + 9 C. x + 20 < (x + 9)2 D. x + 20 < x2 + 92