The input is the number of people and the output is the number of sweaters.
Is this relation a function?

answer: its because of life

step-by-step explanation: i dont know

answer: im gonna go with milli

step-by-step explanation:

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

where:

r: it is the radius of the cylinder

h: it is the height of the cylinder

we can also rewrite it as:

where:

la: it's the lateral area

ba: area of the base

option a