Question 627908
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Hi,
The length of a rectangular box is 7xy, the width is 5y2, and the height is 2xz. 
V = length·width·height    Note: {{{( x^m )( x^n ) = x^( m + n )}}}
{{{7x^1y^1*5y^2*2x^1z = 70x^2y^3z}}}