You sold tickets to the school play. Advanced tick- ets were $4. Tickets bought at the door were $5.
Total ticket sales were $400. Let x represent the
number of advanced tickets sold and y represent
the number of tickets sold at the door.
31. Graph the linear function 4x + 5y = 400.
32. Label the x-intercept and the y-intercept.
What does each represent in the situation?

Circle a has a diameter of 7 inches, a circumference of 21.98 inches, and an area of 38.465 square inches. the diameter of circle b is 6 inches, the circumference is 18.84 inches, and the area is 28.26 square inches. part a: using the formula for circumference, solve for the value of pi for each circle. (4 points) part b: use the formula for area and solve for the value of pi for each circle. (4 points)