Answer:
A. [tex] 3a^{2}b^{4} [/tex]
Step-by-step explanation:
area = length * width
length = area/width
[tex] L = \dfrac{A}{W} [/tex]
[tex] L = \dfrac{15a^3b^6}{5ab^2} [/tex]
[tex] L = \dfrac{15}{5} \times \dfrac{a^3}{a} \times \dfrac{b^6}{b^2} [/tex]
[tex] L = 3 \times a^{3 - 1} \times b^{6 - 2} [/tex]
[tex] L = 3 \times a^{2} \times b^{4} [/tex]
[tex] L = 3a^{2}b^{4} [/tex]
