Which equation represents a circle with the same center as the circle shown but with a radius of 2 units? (x – 4)2 (y – 5)2 = 2 (x – 4)2 (y – 5)2 = 4 (x – 5)2 (y – 4)2 = 2 (x – 5)2 (y – 4)2 = 4

How do refracting telescopes magnify a far away image? a. by directing light beams to meet at a focal point b. by absorbing light beams’ wavelengths c. by forcing light beams to change direction d. by measuring light beams’ velocity