Respuesta :

21)22n + 66
22)29n (use PEMDAS)
23) 99

Idk the instructions but these are the simplest answers

Jem16
21. Multi n by 22 and 3 by 22 then add
22.add like terms like the two n's and the numbers then multiple
23. Do the work left to right
RELAXING NOICE
Relax