Tom bought 7 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?

Which matrix multiplication is possible?

Write the following as a base and exponent

Awoman has 14 different shirts: 10 white shirts and 4 red shirts. if she randomly chooses 2 shirts to take with her on vacation, then what is the probability that she will choose two white shirts? show your answer in fraction and percent, round to the nearest whole percent.