exponents and powers .pls answer

Answer:
(a)
Step-by-step explanation:
Since all ratios are raised to the power of 4, then
[tex]\frac{x}{y}[/tex]
= [tex]\frac{3(15)}{5(10)}[/tex]
= [tex]\frac{45}{50}[/tex] = [tex]\frac{9}{10}[/tex] → (a)
Answer:The answer is option (a)
Step-by-step explanation: For this question, since all 3 terms have the same power, you compare the bases and ignore the powers. So you have 3/5 × 15/10 = x/y. That is 45/50 = x/y. Reducing to the lowest terms 9/10 = x/y. I hope that helped.