Question

Evaluate the expression.

7! • 4! - 6!

A) 120,240
B) 120,020
C) 120,000
D) 119,420

Answer 1

When a number is followed by an exclamation point (!) it means that number gets multiplied by all the numbers below it.

So 7! = 7*6*5*4*3*2*1 = 5040

4! = 4*3*2*1 = 24

6! = 6*5*4*3*2*1 = 720

Now the equation is:

5040 * 24 -720

5040 *24 = 120960

120960 - 720 = 120240

The answer is A.