Which expression is equivalent to (x^6 y^8)^3/x^2 y^2

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

Write an algebraic expression for the word expression the quotient of c and 8

For what values of the variable x is the expression square root of 7x+14+ square root of 7-x a real number?