I believe your answer is J. The total has to be less than or equal to 50, and you're already spending 7 dollars for a ticket.
Hopefully this helps!
Answer:
The height of the cylinder is 4x units.
Step-by-step explanation:
volume of a cylinder = nr^2h
n = 22/7
r = radius = x/2
Let illustrate with an example. If the diameter of a cylinder is 6 and the volume is 6^3 = 216. The radius = 6/2 = 3
n3^2 x h = 216
h = 216/9 = 24
so the height is 4 times the diameter
Area of the base = nr^2
1/2^2 x x = 1/4 pi x^2
Answer is 2/5
1/5 = 20% = 0.2
2/5 = 40% = 0.4!
1/3 = 0.333...
7/9 = 0.777...
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I think -4 would be decreasing.
The surface area is 480 :)