The circle has center O. Its radius is 9 cm, and the central angle a measures 40°. What is the area of the shaded region? Give the exact answer in terms of it, and be sure to include the correct unit in your answer.

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

What is the value of p in the equation y^ = -4x?

Frank is lending $1,000 to sarah for two years. frank and sarah agree that frank should earn a real return of 4 percent per year. instructions: a. the cpi (times 100) is 100 at the time that frank makes the loan. it is expected to be 113 in one year and 127.7 in two years. what nominal rate of interest should frank charge sarah?