If the revenue for a certain product is $9.00 each and the company sells x products, then the revenue equation is r = 9x. if the cost of producing the product is 50,000 plus $4.00 per piece, then the cost equation is c= 5 + 4x how many products must be sold to breakeven?

The company must sell 10,00 products to break even

Explanation:

If you use the approached suggested in the question,  you can solve for break even quantity by setting revenue to equal cost

R = C => 9x = 50,000 + 4x => 5x = 50,000 => x =10,000

Double check:

10,000 products sold as $9 would fetch $90,000 in revenue

Producing 10,000 products would incur 50,000 + 4 * 10,000 = $90,000 in total costs

=>The solution is correct

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the investment was $14,174.196

explanation:

a lump sum means that the father of the example made one deposit and leave it be.

we need to know the value of a capital that generated at 4.05% per year during 28 years the sum of $48,613.24

now clearing the formula to solve for capital we got:

and we reach the answer investment = $14,174.20