A library wants to buy a new computer that cost $989.99. So far, the library has collected $311. 25 in donations. About how much more money does the library need to buy the computer?

days of the week

step-by-step explanation:

javier earned more money then kyle, so that won't always be a constant term, but the days of the week do not change so that term is always constant.

edit: i meant

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

(hint): the answer is in the question.