20% of $175 is $35. Divided between 5 people (35/5=7) would be 7. So each person should tip $7.
The answer is -4, hope this helped
To find 1. all you have to do is 165/30 and you get $5.50. To find 2. you have to add 165+45 you get 210. then divide 210/40 and you get 5.25
