Which expression is equivalent to a3 b5 c2 ?

What is the solution to the equation in the & show work i’m very

Ineed to know the ordered pairs for this equation i need the answer quick because it’s a timed test

Will mark ! (10 points also! ) if x varies inversely with y and x =6 when equals y= 10, find y when x=8 a. y=4.8 b. y=7.5 c. y=40/3 d. y=4/15