exam Maths Puzzle Numerical Ability

I need to know the area of a 15 foot cylinder with a depth of 6 inches.

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exam Other Question

P(x)=2x^3-21x^2-2x+25; a=1,b=2 i need to graph these three but i dont know how?

there all supposed two be graphed on one graph

(there three things to this problem)
y=2x^2
y=2(x-1)^2
y=2(x+3)^2

(there