nativebabydoll35 nativebabydoll35 27-09-2021 Mathematics contestada Carla was saving coins. She started with 7 coins in her collection. She adds 3 coins each month. How many coins will she have in the 8th month? Choose the rule that matches this situation. A. 8 + 3 * 7 B. 31 coins C. 7 + 3 * 8 D. 7 + 3