Marcelino bought balloons to sell at lunches to raise money for charity

Can some one me with these questions

Every weekday, mr. jones bikes from his home to his job. sometimes he rides along two roads, the long route that is shown by the solid lines. other times, he takes the shortcut shown by the dashed line. how many fewer kilometers does mr. jones bike when he takes the shortcut instead of the long route?

Analyze the diagram below and complete the instructions that follow. how to find tan