Which of the following sets of numbers could not represent the three sides of a right triangle?

2(n-1)+4n=2(3n-1)n=0no solutioninfinitely many solutions n= - 4 !

Aplane flies around trip to philadelphia it flies to philadelphia at 220 miles per hour and back home with a tailwind at 280 miles per hour if the total trip takes 6.5 hours how many miles does the plane fly round trip

Jose predicted that he would sell 48 umbrellas. he actually sold 72 umbrellas. what are the values of a and b in the table below? round to the nearest tenth if necessary