Ezra decides to charge per dog instead of per hour. How does the solution set change? What are the limitations on x and y? Explain.

The limitations on y-values changed from nonnegative multiples of one-half to whole numbers, since Ezra cannot walk a fractional number of dogs.  The limitations on x-values did not change and must be nonnegative multiples of one-half, since Ezra cannot work negative hours and charges by the half-hour.

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step-by-step explanation:

if the four friends split the cost, p, of the pizza evenly, then each friend pays one-fourth of the cost of the pizza.

the expression is   or