Question

A company makes and sells charm bracelets. The cost of producing x bracelets is represented by the function
C(x) = 180 + 8x. The revenue earned from selling x bracelets is represented by the function R(x) = 20x.
Write and simplify a function P that represents the profit made from selling x bracelets.
How many bracelets must the company sell to break even?

Answer 1

for the equation, profit = revenue - cost, so you can simply subtract the revenue - cost equations, then set the result as P

for the next part, how many bracelets that must be sold to break even, the break-even point occurs when P = 0, so you can simply set your P equation equal to 0 and solve for x