Tom bought 9 new baseball trading cards to add to his collection. the next day his dog ate half of his collection. there are now only 25 cards left. how many cards did tom start with? put it in a two step equation

in 2010, the population of the state of california is 37.29 × 10⁶

step-by-step explanation:

population of los angeles = 3.79 × 10⁶

population of california = 9.84 × population of los angeles

                                        = 9.84 × 3.79 × 10⁶

                                        = 37.2936 × 10⁶

                                        = 37.29 × 10⁶

∴ in 2010, the population of the state of california is 37.29 × 10⁶

the correct answers are 1, 2, 4, and 5! i just got it right!