Ethan starts the week with a balance of $275.00 in his checking account. During the week, he uses his debit card to spend $27.50 on food, $12.00 at the movies,
and $6.75 for music downloads. He earns and deposits $45.00 for mowing lawns.
What is Ethan's balance at the end of the week?

In a test for esp (extrasensory perception), a subject is told that cards only the experimenter can see contain either a star, a circle, a wave, or a square. as the experimenter looks at each of 20 cards in turn, the subject names the shape on the card. a subject who is just guessing has probability 0.25 of guessing correctly on each card. a. the count of correct guesses in 20 cards has a binomial distribution. what are n and p? b. what is the mean number of correct guesses in 20 cards for subjects who are just guessing? c. what is the probability of exactly 5 correct guesses in 20 cards if a subject is just guessing?

Benjamin is making bow ties. how many 1/2yards lomg bow ties can he make if he has 18 feet of fabric?

10x − 5y + 14 = 0 whats the answer pls