26. Find the difference between * 1 point 9 15 2 -8 15 15 Option 1 O Option 2 7 2 15 7 5 O Option 3 O Option 4 27. What is 13 % in decimal 1 point O 0.13 0.013 O 1.3 O 0.0013 28. What is the sum of +5 and -4? 1 point O +1 оо -1 +9 O 29. What is 90% of 240* 1 point оооо 40 30. If the probability of an event to happen is o, the event is 1 point O impossible to happen O certain to happen O likely to happen O none of the above​