Which expression is equivalent to (x^5)^-3/x^-20 for all values of x where the expression is defined?

A. 1/x^5

B. x^35

C. 1/x^35

D. x^5

Answer this question only if you know the 30 points and

Write 17/20 as a decimal and as a percent.

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?