Answer:
60
Step-by-step explanation:
rate of change of graph,df(x)/dx
=(120-0)/(3-1)=60
Yes it does bdffgjkhhh BGC. Bc. G. G. G. Y. Y. Y
X + x+2 + x+4 + x+6 +x+8 + x+10 + x+12 + x+14 + x+16 + x+18 = 1190
Now simplify
10x + 90 = 1190
10x = 1100
x = 110
Now plug in 110 for x
There are about 88 chairs in all.
All you have to do is 22x4 which equals 88. :)