The average business traveler spends almost $50 per day. mary o sullivan spent the following yesterday: dinner, $21.50; lunch, $10.58; breakfast, $5.88; tips, $7.51; and taxes, $2.95. how much was she under the average?

To solve this, we simply add up the total amount of money she spent that day:

21.50 + 10.58 + 5.88 + 7.51 + 2.95 = 48.42

50 - 48.42 = 1.58

She was $1.58 under the average.

V (t) = 28,900 - 4,335t

The function clearly represent a decay

Step-by-step explanation:

1. Let's review the information given to us to answer the question correctly:

Value of the car = $ 28,900

Annual depreciation = 15% = 0.15

2. Identify the function for the value of the car. Does the function represent growth or decay?

Let y represent the value of the car after t years of utilization, let p the price of the car and d, the annual depreciation, therefore:

V (t) = p - (d * t * p)

Replacing with the values we know:

V (t) = 28,900 - (0.15 * t * 28.900)

V (t) = 28,900 - (0.15 * t * 28.900)

V (t) = 28,900 - 4,335t

The function clearly represent a decay.