Best way to pay off my student loans

I have 7 loans for my student loans
1. $3,502.89 with Interest Rate of 2.750%
2. $2,081.99 with Interest Rate of 2.750%
3. $4,505.05 with Interest Rate of 3.730%
4. $6,333.92 with Interest Rate of 3.730%
5. $5,262.89 with Interest Rate of 4.990%
6. $5,509.11 with Interest Rate of 5.500%
7. $2,141.78 with Interest Rate of 5.500%

Anybody know what the best way to pay this all off I have steady income making about 85 a year not entirely sure which one should be my main focus so any insight helps.