True or false (98 points) questions! 13. to enter a fraction put the fraction bar (/) in a column all its own. (1 point) false true 14. a mixed number should be entered as an improper fraction or a decimal number. (1 point) false true 15. you can enter a 0 in any of the four columns. (1 point) false true 16. if your answer is 5.666 you can enter that as 5.7. (1 point) false true 17. a grid-in question can have a negative answer. (1 point) false true 18. if there's more than one correct answer just pick one and enter it. (1 point) false true 19. there is no guessing penalty for grid-in questions. (1 point) false true 20. if your answer does not fit within the grid, rethink your answer. (1 point) false true