Answer
42
Work Step by Step
You are given: $\frac{7 *6*5*4*3*2*1}{5*4*3*2*1}$.The easiest way to solving this is by canceling out the common factors which are 5,4,3,2,1. You are left with $\frac{7*6*5*4*3*2*1}{5*4*3*2*1}$ = 7 $\times$6=42.The answer is 42
