Explain why 2n+1 must be an odd number

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

For a field trip to the zoo, 4 students rode in cars and the rest filled nine busess. how many students were in each bus if 472 students were on the trip

The pair of coordinates that do not represent the point( 5,150’) is a. (5,-210) b. (5,210) c. (-5,330) d. (-5,-30)