Ezra invested $1 at 5% interest compounded annually. Which of the following gives the total value, in dollars, of the investment after 4 years?

The formula for compound interest is A = P(1 + r/n)^(nt), where:

• A is the amount of money accumulated after n years, including interest.
• P is the principal amount (the initial amount of money).
• r is the annual interest rate (in decimal).
• n is the number of times that interest is compounded per year.
• t is the time the money is invested for in years.

In this case, Ezra invested $1 at 5$1, r = 5/100 = 0.05 (since the rate is given in percentage), n = 1 (since the interest is compounded annually), and t = 4.

Substituting these values into the formula, we get:

A = 1(1 + 0.05/1)^(1*4) A = 1(1 + 0.05)^4 A = 1(1.05)^4 A = 1.21550625

So, the total value of the investment after 4 years is approximately $1.22 (rounded to the nearest cent).