The point at which a company's profits equal zero is called the company's break-even point. let r represent a company's revenue, let c represent the company's costs, and let x represent the number of units produced and sold each day.
r(x)=12x
c(x)=6.5x+22000
a) find the firm's break-even point; that is, find x so that r=c
b) find the values of x such that r(x)> c(x). this represents the number of units that the company must sell to earn a profit.

a)     R=C implies 12x=6.5x + 22000, and then 12x - 6.5x= 22000, 5.5x= 22000, from where we find x = 22000 : 5.5,     x=4000.

b)     For R(x)>C(x), we get 12x>6.5x + 22000, which implies after the same calculation,  x>4000

cant open file sorry!

step-by-step explanation:

11.2

step-by-step explanation:

when doing tangent the tangent of the angle is equal to the opposite side from the angle over the adjacent side to the angle.

tan43 = x / 12

move 12 over by multiplying each side by 12

12tan43 = x

x = about 11.2