To find the surface area of a cylinder, use the formula SA = 2(pi)(radius^2) + 2(pi)(radius)(height).
So now, plug in what you know.
SA = 2(3.14)(5^2) + 2(3.14)(5)(9)
SA = (6.28)(25) + (6.28)(45)
SA = 157 + 282.6
SA = 439.6 square cm
439.6 square cm is your surface area
5u > 64 - 14
5u > 50
u > 10
Answer: +15
Step-by-step explanation: A deposit of $15 is an increase,
which means that it's positive.
So it can be written as +15.
BC is greater than AC is correct. If you need help with the construction, feel free to ask.
And maybe you're not clear with the options, because you've written BC two times which is necessarily not an answer/option.
Therefore? What needs to be solved?