Which shows the following expression using positive exponents?
-3a^-2b^3/15a^-7b^-1 a ≠ 0, b ≠ 0
A a^7b^3b^1/15(3)a^2
B -3a^7b^3b^1/15a^2
C -3(-a^2)b^3/15(-a^7)(-b^1)
D 15a^7b^3b^1/-3a^2
Which shows the following expression using positive exponents?
-3a^-2b^3/15a^-7b^-1 a ≠ 0, b ≠ 0
A a^7b^3b^1/15(3)a^2
B -3a^7b^3b^1/15a^2
C -3(-a^2)b^3/15(-a^7)(-b^1)
D 15a^7b^3b^1/-3a^2