Answer:
I think one.
Step-by-step explanation:
Because 16 divided by 4 is 4 minus the 3 and its 1. So I think 1 is the mystery number.
hope i help
It looks like ∆ is defined as
<em>a</em> ∆ <em>b</em> = (<em>a</em> + <em>b</em>)² + 5
If that's the case, then
1 ∆ (-4) = (1 + (-4))² + 5 = (-3)² + 5 = 9 + 5 = 14
To do this we take the outlier off the parenthesis (the 4) and multiply it by the two numbers inside the parenthesis...
4*7 + 4*8
28+32
30,000 shirts for the men and 17,000 shirts for the women
