# Math

posted by
**Amanda**
.

Simplify each expression. Write answers using positive exponents.

a. (7x^2y^3)(-2xy)

b. (a^2b^3)^-1(a^2b^3)

c.(-4m^3)^2

posted by
**Amanda**
.

Simplify each expression. Write answers using positive exponents.

a. (7x^2y^3)(-2xy)

b. (a^2b^3)^-1(a^2b^3)

c.(-4m^3)^2