Evaluate 5e + 5 -7f when e = 6 and f = 5

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

Select the correct answer and solve for y

Sam opened a money-market account that pays 3% simple interest. he started the account with $7,000 and made no further deposits. when he closed the account, he had earned $420 in interest. how long did he keep his account open?