Question

IMPORTANT dont put whatever or ill report

Answer 1

1) rearrange formula.

`a=lw\\\\l=(a)/(w)`

2) substitute values.

`l=(42x^(3)y^(4))/(6xy)`

3) solve.

`l=(42x^(3)y^(4))/(6xy)\\\\(42)/(6)=7\\\\ (x^(3))/(x)=x^(2)\\\\(y^(4))/(y)=y^(3)`

l = 7x²y³

4) verify

`a=lw\\\\a=(7x^(2)y^(3))(6xy)\\ \\a=42x^(3)y^(4)`