Revenue Dorothy Wagner is currently selling 20 "I love Calculus" T-shirtsper day, but sales are dropping at a rate of 3 per day. She is currentlycharging $7 per T-shirt, but to compensate for dwindling sales, she isincreasing the unit price by $1 per day. How fast, and in what direction,is her daily revenue currently changing?

2. An antique computer valued at $6500 depreciates at the rate of 14% per year (b = 0.86). Equation: Circle one: Linear or Exponential 3. The population of flying squirrels in Madagascar started with 3 and the population doubles each year. Equation: Circle one: Linear or Exponential 4. Penny has a stamp collection of 550 stamps. Penny is feeling generous and gives away7 stamps every week. Circle one: Linear or Exponential Equation: 5. The phone company charges a flat rate of $25 per month. In addition they charge $0.05 for each min of service. Write a function to model the relationship between the number of minutes of service each month. 6. Jenny bought a 2016 Ford F-150 for $25,000 which depreciates at a rate of 4.3% per year (b = 0.957). Write a function to model the relationship between time and value of the car. 7. Brian used the equation y = 3x + 7 that represents the new cucumber plant that he bought for his yard, where x represents the weeks since the cucumber plant was planted…

The simple interest on an investment is directly proportional to the amount of the investment. By investing $5800 in a municipal bond, you obtained an interest payment of $221.25 after 1 year. Find a mathematical model that gives the interest I for this municipal bond after 1 year in terms of the amount invested P. (Round your answer to three decimal places.) I= 26.215P I=221.25P I= 0.038P I= 1,283,250P I=5800P

The population of Denver is 620,000 people. It is currently growing at a rate of 2% per year (growth rate is 1.02). Part 1: Write an equation to model the population of Denver over time. Part 2: Is the base of your exponent more than or less than 1? Why is that? Part 3: What is the new population after 5 years?