Sandra earns $164 for working 16 hours and $512.50 for working 50 hours. The relationship between her income and the number of hours is a proportional linear relationship. Determine the rate of Sandra’s earnings.

What is the order of magnitude for the number of liters in a large bottle of soda served at a party

Find the center and the radius of the circle with the equation: x^2-2x+y^2+4y+1=0?

Emmanuel added 888 links per minute to his chain mail. allesia started 202020 minutes after emmanuel and added 131313 links per minute to her chain mail. how long had emmanuel worked when allesia caught up to him, and how many links had he added?