After 88 years, Amanda's account earned $1500$⁢1500 in interest. If the interest rate (in decimal form) is 0.080.08, how much did Amanda initially invest?Amanda's Bank StatementInterest Earned $1500$⁢1500Rate 0.080.08Time 88 YearsPrincipal Invested ?Step 2 of 3: Without substitution, solve the formula for the unknown variable in terms of the known variables.

After 88 years, Susan's account earned $900$⁢900 in interest. If the interest rate (in decimal form) is 0.10.1, how much did Susan initially invest?Susan's Bank StatementInterest Earned $900$⁢900Rate 0.10.1Time 88 YearsPrincipal Invested ?Step 2 of 3: Without substitution, solve the formula for the unknown variable in terms of the known variables.

Amanda invested $9000 in a fund for 5 years and was paid simple interest. The total interest that she received on the investment was $1800. As a percentage, what was the annual interest rate of her investment?

Last year Sarah invested money in two accounts. The first account had an interest rate of 3%3% and the second account had an interest rate of 2%2%. If she invested $600$⁢600 more in the first account than the second and her total interest income was $388$⁢388, how much did she invest at each rate?Step 3 of 3: Solve the equation found in part 2 for x. Use this information to answer the given word problem.

Last year Sarah invested money in two accounts. The first account had an interest rate of 3%3% and the second account had an interest rate of 4%4%. If she invested $700$⁢700 more in the first account than the second and her total interest income was $553$⁢553, how much did she invest at each rate?Step 1 of 3 :  Complete the following table by entering the missing values. Enter the rates in decimal form.

Last year Rachel invested money in two accounts. The first account had an interest rate of 6%6% and the second account had an interest rate of 4%4%. If she invested $800$⁢800 more in the first account than the second and her total interest income was $238$⁢238, how much did she invest at each rate?Step 2 of 3: Use the table from part 1 to help write a linear equation that represents the given word problem. (Use x to represent the unknown quantity.) Do not simplify your answer.