Final answer:
Marty will have approximately $3,266.96 in his account after 7 years.
Step-by-step explanation:
To find the amount of money Marty will have after 7 years, we can use the formula for continuous compound interest: A = P * e^(rt), where A is the final amount, P is the principal amount, e is Euler's number (approximately 2.71828), r is the interest rate, and t is the time in years. Plugging in the given values, we have:
A = 3000 * e^(0.026 * 7)
Calculating this expression, we find that Marty will have approximately $3,266.96 in his account after 7 years.