Name the constant of variations(k) for each equation, y=1/2x

What are “like terms”? why can we only add like terms?

Divide. write in the simplest form. 4 1/6 divided by 10

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