Employee has available sick time 4.21 but she used 3.30 so what the the balance left?

She has .91 left.

4.21 minus 3.30 equals .91.

Check work:

4.21

3.30

0.91

(1 minus 0 is 1, 2 gets turned into 12-3 and the 4 got turned to a 3. 12-3 is 9, and 3-3 is zero. Then you just carry down the decimal)

Hope this helps! :)

2^y = ln 5, or   y(ln 2) = ln 5.   solving for y,   y = (ln 5) / (ln 2).   y=5

step-by-step explanation:

42

step-by-step explanation: