Renting a canoe costs $5.00 per hour for each adult and $2.50 per hour for each child. one adult and two children decide to rent a canoe. what is an equation that shows the relationship between cost c in dollars and time t in hours ?

Find the solution of this system of equation -7x+y=-20 9x-3y=36

Explain how you can find the missing fraction in 3 4/5 / (blank) 2 5/7. then find the missing fraction.

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?