The number of cell sites in the united states was 178025 in 2005. by 2012 the number of cell sites had increased to 301779. what was the percent increase?

the first one is x^2+2x+2

the second one is x^2+4

the last one is x^2-4x+8

for this case we have that by definition, the volume of a cylinder is given by:

where:

r: it's the radio

h: it's the height

we have as data that:

substituting:

so, the cylinder volume is

option d