15 students have roles and 25 do not I hope this is right or at least helps :)
Answer:
141,243
Step-by-step explanation:
1. Use PEMDAS
(300)(470) - 78 + 344 - 23 (Do muti first)
141,000 - 78 + 344 - 23 (You can do any order now)
141,243
It's b. You have to times $4 by 6 to get $24. Then you take it away from $30 to get the change so $6
