Is 21 km, 28 km, 35 km, a right triangle

Inez has a phone card. the graph shows the number of minutes that remain on her phone card a certain number of days.

The scatterplot represents the total fee for hours renting a bike. the line of best fit for the data is y = 6.855x + 10.215. which table shows the correct residual values for the data set?

From the top of a tree a bird looks down on a field mouse at an angle of depression of 50°. if the field mouse is 40 meters from the base of the tree, find the vertical distance from the ground to the bird's eyes.