Question

I need help ;^; please​

Answer 1

80

Good luck :)

Answer 2

80

Explanation:

`√(a) * √(b) = √(ab)`

`√(6400)`

6400 = 2 * 2 * 2 * 2 * 2 * 2 * 2 *2 * 5 * 5

= 2^8 * 5^2

2^4 * 5

16*5 = 80