What is the simplified form of the expression?

How many $20 bills do you need to have to make $280

Marcus and cody both leave the park at the same time, but in opposite directions. if cody travels 6 mph faster than marcus and after 4 hours they are 64 miles apart, how fast is each traveling? solve using rare times time = distance.

Find the amplitude of a sinusoidal function that models this temperature variation