Answer all questions. Need help, explain each step please

Q3 The network below represents a project being analyzed by the critical path method. Activity durations are A=5,B=2, C=12,D=3,E=5,F=1,G=7,H=2,I=10, and J=6. Based on the information provided above, answer the following questions; i. Identify the critical path ii. What is the overall length of the project? iii. Calculate ES, EF, LS, LF, and Float/slack for all activities