Business In Exercises 36, find all values of x for which the given products will at least...

Business In Exercises 36, find all values of x for which the given products will at least break even. (See Examples.)

C = 25,000x + 21,700,000; R = 102,500x

Example 1

Business A company analyst has determined that the cost to produce and sell x units of a certain product is C = 20x + 1000 . The revenue for that product is R = 70x . Find the values of x for which the company will break even or make a profit on the product.

Example 2

Business A pretzel manufacturer can sell a 6-ounce bag of pretzels to a wholesaler for $.35 a bag. The variable cost of producing each bag is $.25 per bag, and the fixed cost for the manufacturing operation is $110,000. * How many bags of pretzels need to be sold in order to break even or earn a profit?