Answer:

Step-by-step explanation:
The formula for the surface area of a cylinder is:

And we want to solve for the height h.
First, subtract
from both sides. This yields:

Now, divide both sides by
. This yields:

And we're done!
Answer:b
6
Step-by-step explanation:
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20% if it will determine the pay of how much it is.
900,000 because that is where the value of 9 is placed in the number.
Seven because 1+2 is 3 and 3+1 is 4 so in total is seven