Given:


To find:
The value of
.
Solution:
We have,
![[\because d(t)=80t]](https://tex.z-dn.net/?f=%5B%5Cbecause%20d%28t%29%3D80t%5D)

Now,
![[\because C(d)=0.09d]](https://tex.z-dn.net/?f=%5B%5Cbecause%20C%28d%29%3D0.09d%5D)

Therefore, the value of
is 72.
Answer:
Step-by-step explanation:
Your answer
5.55 per square foot
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Answer:
is this in graph or equation? ???
TIP:
74.90*.2=14.98
74.90+14.98=89.88
TOTAL:
89.88/5=17.98
each person pays $17.98
Hope this helps!