This task is relative to the Jo-walking context. Use the variables z and y defined in the text above this question. a. Write a formula that expresses Jo's distance from her car in feet, y, in terms of her distance from her house in feet, z. y-140-x Preview b. When a 35, what is the value of y? y=105 Preview c. At some moment Jo is 111 feet from her house. What are the values a and y at this moment? y = Preview Preview d. At some moment Jo is 44 feet from her car. What are the values of x and y at this moment?