The answer is 20, I hope this helps!
Answer:
3628800
Step-by-step explanation:
First letter can be chosen form all 10, next from 9, third from 8 and so on, until you have only one number left.
So the number of ways to arrange the letters can be calculated as
n=10×9×8×7×6×5×4×3×2×1=362800
Answer:
Ivan’s range: 2,640 = 2.64 x 10^3 ft
Winnies
range: (2.5)5280 = 13200 = 1.32 x 10^4 ft
Winnies WiFi has the greater range