You purchased a car for $30 000. It depreciates by 25% of its current value every year. a) Write a function that can be used to model the value of the car after x years. b) How much will the car be worth 3 years after it is purchased? c) How long would it take for the car to depreciate to a value of $20 000?

You borrow $10,000 into an account that earns 4.5% interest each year. Give the equation of the line and give the total amount you owe have after 30 years.

The cost (C) of computer monitor is partly constant and partly varies directly as the number of computer monitor (N) produced. The cost is $2000 when 5 computer monitors produced. The cost is $2600 when 7 computer monitors produced. (a) Find the cost (C) in terms of the number of computer monitors (N). (b) Find the cost (C) when 10 computer monitors produced. (c) Find the number of computer monitors (N) produced when the cost is $6500.

You invest $100 in the bank for 7 years at a 9.34% interest compound continuously. How much interest do you accumulate?

Cyril plans to invest $5500 in a money market account that pays interest compounded annually. a. Write a formula for the balance, B in Cyril's account after two years as a function of the interest rate, r. B = 5500(1+1/100)^2 b. If Cyril would like to have $6000 in two years, what interest rate must the account pay? r = 4.6 c. Use your calculator to graph the formula for Cyril's account balance. Locate the point on the graph that corresponds to the amount in part (b).

VI. Solve. 9.) A deposit of $7500 is made in a bond that pays 4% interest, compounded continuously. The balance will be given to a charity after the money has earned interest for 40 years. How much will the charity receive?

The following formula is one of the formulas for the balance function for a simple interest account. B(t) = P.(1+ •t in What would be the balance in Marty's account after 43 months if he initially deposited $1,500 and his bank paid him simple interest at an annual rate of 4.98%? Round your answer to the nearest penny. Input just the number without the dollar sign. Example: 2547.32 B(43) = $[B]