How many computers must the ab computer company sell to break even? let x be the number of computers.
cost function: c (x) = 145 + 1/4x
revenue function: r (x) = 1.5x

You break even if you spend exactly as much as you gain. In other words, if the cost and the revenue are the same:

Subtract 0.25 from both sides:

Divide both sides by 1.25:

So, they must sell 116 computers to break even. If they sell less, they'll lose money. If they sell more, they'll start making profit.

so far i think you have the right thing going for you just remember soh cah toh

step-by-step explanation:

sine over hypotenuse

cosine   equals adjacent

tangent over hypotenuse

answer: bearing in mind that a rectangle has a perimeter of length + length + width + width.

step-by-step explanation:

p = perimeter

l = length

x=width

p = 2l + 2x

p = 2(l+x)     < ==== perimeter of the base of the box.