# Algebra

posted by .

Need to get these problems checked--

21. Suppose inflation of money is at a rate of 3% per year in the US. How much will a \$1 candy bar cost in 30 years?

1.03^30 * 1= \$2.43

22. Find the next 3 terms of the geometric sequence 4, 10, 25.

23. Find the next 2 terms of the geometric sequence 50, 40, 32

24. What is the eighth term of the geometric sequence whose first three terms are 3, 6, and 12?

3 * 2^7 = 384?

28. True or False: Linear and exponential functions are exactly alike.

False.

30. What is the y-intercept of the graph of y = 4^x-2?

-2?

Thanks
-MC

• Algebra -

22. the common ratio is 10/4 or 2.5
then 25(2.5) = 62.5
62.5(2.5) = 156.25
156.25(2.5) = .... etc

23. done the same way, find the common ratio 40/50 or 4/5 or .8

the rest are correct

## Similar Questions

As part of your financial planning, you wish to purchase a new cat exactly 5 years from today. The car you wish to purchase coasts \$14,000, and your research indicates that its price will increase by 2% to 4% per year over the next …
2. ### algebra 2

When inflation causes the price of an item to increase the new cost C and the original cost c are related by the formula C=c(1+r)^n, where r is the rate of inflation per year as a decimal and n is the number of years. What would be …
3. ### math

Inflation is running 2% per year when you deposit \$1000 in an account earning interest of 13% per year compounded annually. In constant dollars, how much money will you have two years from now?
4. ### Strayer university

Suppose that the Fed's inflation target is 2%, potential output growth is 3.5%, and velocity is a function of how much the interest rate differs from 5%: %^V= 0.5 X (i-5). Suppose that a model of the economy suggests that the real …
5. ### finance

Suppose that you are 25 years old and you have two options to save money for retirement. Plan A allows you to save \$3000 per year for the next 20 years, then sit for 20 years and finally draw on it for the following 30 years. Plan …
6. ### Trig!

a) The annual inflation rate is 3.5% per year. If a movie ticket costs \$7.50, find a formula for p, the price of the tickets t years from today, assuming that movie tickets keep up with inflation. b) According to your formula, how …
7. ### money and banking

Suppose that the Fed's inflation target is 2%, potential output growth is 3.5%, and velocity is a function of how much the interest rate differs from 5%: % triangle v=0.5 x (i-5) Suppose that a model of the economy suggests that the …
8. ### Retirement

1. I would like to retire in 42 years at the age of 65. The average retirement age for women is between 60-62 years of age, and 62-64 for men. 2. My annual amount of money I'll need after retiring would be approxiamately \$26,500 (2,205*12=\$26,460) …
9. ### Mathematics of growth rate! Need help!

Suppose that your child is born this year, and that you would like to set aside enough money now so that your child will have \$3000000 at retirement in 20 years. A) if return of return on your money averages 5% per year over the next …
10. ### discrete math

You have borrowed \$8000 from the bank. Suppose you want to repay a fixed amount of money for each of the following n years (except possibly the last year), and the annual interest rate r does not change in these n years. For example, …

More Similar Questions