I am where a tangent touches a circle WHAT AM I?​

Solve the system of equations. y= 2x y= x^2 - 15

The scatter plot graph shows the average annual income for a certain profession based on the number of years of experience which of the following is most likely to be the equation of the trend line for this set of data? a. i=5350e +37100 b. i=5350e-37100 c. i=5350e d. e=5350e+37100

You give a $4 tip for a meal that cost $22. approximately what percent of the bill was your tip?