Could you pretty please answer these? I really need this done now
Thank you!

Julia chooses a card at random from her set of cards. what is the probability that the card is labeled cat or hamster?

Solve with work adding cheese to a mcdonalds quarter pounder increases the fat content from 21g to 30g. what is the percent of change ?

Which expressions are equivalent to k/2 choose 2 answers: a k-2 b 2/k c 1/2k d k/2 e k+k