Answer:
155
Step-by-step explanation:
first add 72 and 83 = 155. Then use 180-155=25. then subtract 25 from 180.
Your rate of change is 3/2.. It will always be the coefficient of 'x'
Increasing: (-4,-4)
Decreasing: (4,-2)
280 students have a total of 560 points
There 60 more boys(x+60) complete than girls(x)
2*(x+60)+2*x= 560
number of girl =x =110
girl point =110*2= 220
