7) Explain how the parenthesis change the simplification of (4x+y)
verses
4x²y0
0

8000 + 8800 + 8000 + 8 million + 80 trillion + another a katrillion equals

Martha is training for a duathlon, which includes biking and running. she knows that yesterday she covered a total distance of over 55.5 miles in more than than 4.5 hours of training. martha runs at a speed of 6 mph and bikes at a rate of 15.5 mph.

What is value of x? enter your answer in the box. x =