Text Problem 20-18 Question Help The marginal utility that an individual would experience if she were to consume the first unit of a digital app is 28 utils, and the marginal utility that she would experience if she were to consume a second unit is 31 utils. If one app is the amount that the individual decides to consume, what is the person's total utility? If one app is the amount that the individual decides to consume, her total utility is utils. (Enter your response as a whole number.)