Final answer:
An expression involving two or more operations and three or more powers of 5 that can be simplified to 1/5 is 5^3 / (5^2 * 5^2).
Step-by-step explanation:
An expression involving two or more operations and three or more powers of 5 that can be simplified to 1/5 can be:
5^3 / (5^2 * 5^2).
To simplify this expression, we can use the rule that says when dividing two numbers with the same base, we subtract the exponents. So, 5^3 divided by 5^2 is 5^(3-2) which is 5^1. Finally, 5^1 divided by 5^2 is 1 / 5^1+2 which simplifies to 1 / 5^3, which is equal to 1/5.