Can someone pls help? (Geometry)

Asap the total attendance for all of a baseball league in 2012 was about 7.5×107 fans, while the attendance for the tornadoes in 2012 was about 1.5×106 fans. about how many times more was the attendance for the entire baseball league than the attendance for just the tornadoes? 50 times more 10 times more 2 times more 5 times more

Find the greatest common factor of -30x 4 yz 3 and 75x 4 z 2.

Can anyone me with 32,33,36,37,and 40.