Answer:
Step-by-step explanation:
Let y=total monthly income
Let x=each time app is opened
y=25+(.003x)
Yes, I will list acute first (<90) and obtuse second (>90) and they need to add to 180
10 and 170
20 and 160
30 and 150
40 and 140
50 and 130
60 and 120
70 and 110
80 and 100 and so on
