Locker room attendant.
We know that this position is paid with a ratio of $8.50 per hour. So, let's multiply to find the earnings for 30 hours.
![8.50\cdot30=255](https://img.qammunity.org/2023/formulas/mathematics/college/kgy52imu8il40u4iqp2kvmvd4enjlsugad.png)
So, the earnings for this position is $255.
Bus server.
This position is paid 9.20 per hour. So, 30 hours earnings would be
![9.20\cdot30=276](https://img.qammunity.org/2023/formulas/mathematics/college/7l1ddv7e2tig50tezwe3rw1ca7cdd07d6t.png)
Pantry help.
The earnings for this position would be
![9.45\cdot30=283.50](https://img.qammunity.org/2023/formulas/mathematics/college/6muahxa1xiwzbz2905yz88ko7l15uhoi24.png)
$283.50 for 30 hours.
Waiter/Waitress.
The earnings for this position are
![7\cdot30=210](https://img.qammunity.org/2023/formulas/mathematics/college/z5gzgjxl0ep2xi83otn89wj9mm3atf7zp9.png)
$210 for 30 hours.