Solve each application using algebra. Write your equation or inequality and show your solving steps. Answer completely. 1.) A rectangle with perimeter 18 cm has a length that is 3 cm more than twice its width. Find the dimensions of the rectangle. 2) The sum of 3 consecutive integers is 147. Find the 3 integers. 3) If the sales tax on a purchase came to $48, what was the original price (before tax) and what is the final price (after tax)? (Use 6% for the sales tax rate)