Which equation represents a circle that is concentric with
the circle shown but has a radius that is twice as large?
(X – 4)2 + (- 6)2 = 4
(x – 4)2 + (- 62 = 16
(x – 6)2 + (y - 4)2 = 16
(x-6)2 + (-4)= 4

What is the slope of the line shown below?

Percent increase and decrease. original number: 45 new number: 18

Solve the problem by making up an equation. a man could arrive on time for an appointment if he drove the car at 40 mph; however, since he left the house 15 minutes late, he drove the car at 50 mph and arrive 3 minutes early for the appointment. how far from his house was his appointment?