I really need help for this geometry question, I would appreciate any help thank you.

How many square feet of out door carpet will we need for this hole? 8ft 3ft 12ft 4ft

If the speed of an electromagnetic wave is 100,000 cm/s and its wavelength is 100 cm, what is its frequency? a) 100,000 cycles per second (hz) b) 1 × 10-3 cycles per second (hz) c) 10,000,000 cycles per second (hz) d) 1,000 cycles per second (hz)

Mackenzie needs to determine whether the rectangles are proportional. which process could she use? check all that apply.