Find the diameter of circle O. A line that appears to be tangent is tangent

The triangles are similar. what is the value of x? show your work.

How many solutions does the nonlinear system of equations graphed below have?

Frank owns a $141,000 home, for which he has a 30-year mortgage in the amount of $700 a month. once he has paid off mortgage, how much will he have paid in investment? a. $111,000 b. $109,000 c. $120,000 d. $141,000