Jenna had two part-time jobs. She earns $9.50 per hour babysitting for her neighbor and $12.25 per hour working at the Farmers Market. Last weekend, she worked 4 1/2 hours babysitting and 4 hours at the market. a) write an expression to represent Jenna's total earnings from last weekend. b) Evaluate your expression to calculate her total earnings.​

The amount of energy it takes to lift a box might be a function of which of the following

Anew shopping mall is gaining in popularity. every day since it opened, the number of shoppers is 5% more than the number of shoppers the day before. the total number of shoppers over the first 10 days is 1258 how many shoppers were on the first day?

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?