Question

i need help please----->

Answer 1

Step-by-step explanation:

$area \: of \: circle = \pi \times ( {3 {x}^{10} \times {(y}^{15} ))}^{2} \\ \\ = 9 \pi{x}^{20} {y}^{30} \\ \\ \\option \: (b) \: \: \: is \: \: correct.$