It should be a.), all plant cells have a cell wall made of cellulose, which acts as exoskeleton and makes them so stable. However on a bigger level this plant cells can also form cellulose fibers, so that c.) is not completely false :)
So you want to make it: total distance (d) = rate (r) × total time (t), solving for r: r = d / t
r = (420mi) / (3h+214h), r = 420mi / 217h
r = 1.935mi/h = 1.94mi/h
The answer should be -0.6
Answer:
<em><u>x</u></em><em><u>=</u></em><em><u>8</u></em><em><u>1</u></em>
<em><u>y</u></em><em><u>=</u></em><em><u>3</u></em><em><u>3</u></em>
<em><u>z</u></em><em><u>=</u></em><em><u>9</u></em>
<em><u>SEE</u></em><em><u> </u></em><em><u>THE</u></em><em><u> </u></em><em><u>IMAGE</u></em><em><u> </u></em><em><u>FOR</u></em><em><u> </u></em><em><u>SOLUTION</u></em><em><u> </u></em>