Write in standard form.

3z - 9z^3 - 8z^5 + 2z^2

In standard for the powers decend so the answer would be -8z^5-9z^3+2z^2+3z

4z^4 should be the right answer hope this helps

11/2=11➗2=5.5hours and when you put that into this equation 5.5h➗4=1.375h•3=(4.125h) that is the answer, round to the nearest 10th if you feel as tho that’s what your teacher wants