1. is the equation true, false or open? explain. 8 + 4 = −5 + 7 2. which ordered pair is a solution of the equation = −11 + 4? make sure you show work! a. (0, -7) b. (-1, -7) c. (1, -7) d. (2, 26) 3. complete the table and state the rule: input | output 0 0 3 2 3 9 5 15 6 4. a plumber charges $65 per hour to fix a leak. what is an equation that relates the total cost of a leak repair c to the number of hours, h, it takes the plumber to fix the leak? 5. solve for x (literal equations): c = b – bx