I need help with the both of these please If you help I will mark you brainLIEST

How do you determine whether a relationship represented as as graph is linear or nonlinear

The test scores of 32 students are listed below. construct a boxplot for the data set and include the values of the 5-number summary. 32 37 41 44 46 48 53 55 57 57 59 63 65 66 68 69 70 71 74 74 75 77 78 79 81 82 83 86 89 92 95 99

For the inequality |c| < |d| to be true, which of the following must be true?