Which of the following is pythagorean theorem?

Express in the simplest form: (x^2+9x+14/x^2-49) / (3x+6/x^2+x-56)

Interest begins accruing the date of the transaction except for auto loans mortgages credit card cash advances credit card purchases

Tony is charged $ 50 and additional $0.15 per miles for renting a car. a) represent the cost of renting a car with an equation, and the determine the cost if he drove it70 miles. b) what would be the cost of a car rental if the car was driven 250 miles? show work