They are to order a total of 3 burger meals and 3 sodas for Paulo and Jeremy.
The cost of a soda is $6/3 = $<<6/3=2>>2.
So, the 3 sodas will amount to $2/soda x 3 sodas = $<<2*3=6>>6.
The 3 burger meals will amount to $6/burger x 3 burgers = $<<6*3=18>>18.
Hence, the total cost for their orders is $6 + $18 = $<<6+18=24>>24.
#### 24