Answer:
Mean:7 Median:6
Step-by-step explanation:
Okay so the Median is 6, and the mean is correct.
Answer:
4c+4d+36
Step-by-step explanation:
multiply each separate variable inside the parenthesis by the number outside of parenthesis.
The volume of a cylinder is given by

Let
and 
The new volume becomes

So, the new volume is 8 times the original volume. In fact, volume scales linearly with the height and quadratically with the radius.
Solutions just means the amount of times the lines intersect, so there are no solutions. Since the lines are parallel, they’re going the exact same direction forever and ever, never intersecting. Hope this helps!