Help please can someone please answer this

Angles r and s are complementary. the measure of angle r is 31 degrees. which equation can be used to find angle s?

Drag each equation to the correct location on the table. for each equation, determine the number of solutions and place on the appropriate field in the table.

The frequency table shows the results of a survey asking people how many hours they spend online per week. on a piece of paper, draw a histogram to represent the data. then determine which answer choice matches the histogram you drew. in order here is the.. hours online: 0-3, 4-7, 8-11, 12-15, and 16-19. frequency: 5, 8, 10, 8, 7 answer for the question is in the picture! : )