1. Desmond has determined the following information about his two options. Option 1: Repair The cost of repair will be $160, after which the cost to operate the repaired mower is estimated to be $45 per week.
Option 2: Buy New. The cost of the new mower will be $400, after which the cost to
operate the new mower is estimated to be $15 per week.

Create equations to model the options. Each equation should model the cost of thatoption, y, in dollars, as a function of time, x, in weeks.
400
15
45
160
Use the numbers above in your equations.
Option 1
Repair Equation
y =
Option 2
Buy New Equation
y =

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?