help me plz

Problem 1. Predict the structural formula of hydrocarbon (M = 114) has MS below 100 43 80 60 Relative Abundance 10- 29 57 85 71 20 M (114) 1. - 2125 30 35 40 45 50 55 60 65 70 75 80 25 30 96 100 105 110 115 m/2 Problem 2 The hydrocarbon has M = 120, MS below. Predict the structural formula of that hydrocarbon 105 100 80 0- Relative Abundance M (120) 20 51 65 77 91 39 L. .. *** 45 35 10 50 50 60 1 75 65 70 80 85 90 95 100 105 110 115 120