PLZ HELP IM DUMB In the first four months of the year, the Montgomerys’ electric bills were $120.46, $134.59, $118.38, and $96.29. What was the Montgomerys’ average electricity bill during the first four months of the year?
Complete the statement by providing the correct response in number form. Don't forget a label!

The Montgomery's average bill was

Consider the function represented by the equation 1/2 j + 1/4 k equals 3 which shows the equation written in function notation with j as the independent variable

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?

I’m still confused on how to work the percentages