How many hours would you have to ride your bike at 10 mi/h to burn 550 calories? (per minute)

Compare these two waves: the blue and orange waves have the same pitch, but the blue wave is louder. the blue and orange waves have the same volume, but the blue wave has a higher pitch. the orange wave has a higher pitch, but the blue wave is louder. the blue wave has a higher pitch, but the orange wave is louder.

What is the absolute value of the complex number -4-sqrt2i

Eric drove 275 miles in 5 hours. at the same rate how long would it take him to drive 495 miles?