Which choice is equivalent to the quotient shown here when x >0 sqrt(42x ^ 5) / (sqrt(6x ^ 3))

Two cyclists 84 miles apart start riding toward each other at the same. one cycles 2 times as fast as the other. if they meet 4 hours later, what is the speed (in mi/h) of the faster cyclist?

What is the axis of symmetry of the function f(x)=-(x+ 9)(x-21)

You buy five cds at a sale for $5.95 each. write an expression for the total cost of the cds.then use the distributive property and mental math to evaluate the expression.