60c+80=287
Let c stand for the cost of one square foot. with 60 square feet you get 60c. then add 80 for the installation fee.
Answer:
81?
Step-by-step explanation
i might be wrong, if am delete this haha
Answer:
the number 196 come from 14.
namely, how many go-around or revolutions does a tire have to make for those 165 meters.
![\bf \textit{circuference of a circle}\\\\ C=\pi d~~ \begin{cases} d=diameter\\[-0.5em] \hrulefill\\ d=1.7 \end{cases}\implies C=1.7\pi \impliedby \textit{one revolution} \\\\\\ \textit{how many times does }1.7\pi \textit{ go into 165?}\qquad \stackrel{\pi =3.14}{\cfrac{165}{1.7\pi }\qquad \implies \qquad 30.9}](https://tex.z-dn.net/?f=%5Cbf%20%5Ctextit%7Bcircuference%20of%20a%20circle%7D%5C%5C%5C%5C%20C%3D%5Cpi%20d~~%20%5Cbegin%7Bcases%7D%20d%3Ddiameter%5C%5C%5B-0.5em%5D%20%5Chrulefill%5C%5C%20d%3D1.7%20%5Cend%7Bcases%7D%5Cimplies%20C%3D1.7%5Cpi%20%5Cimpliedby%20%5Ctextit%7Bone%20revolution%7D%20%5C%5C%5C%5C%5C%5C%20%5Ctextit%7Bhow%20many%20times%20does%20%7D1.7%5Cpi%20%5Ctextit%7B%20go%20into%20165%3F%7D%5Cqquad%20%5Cstackrel%7B%5Cpi%20%3D3.14%7D%7B%5Ccfrac%7B165%7D%7B1.7%5Cpi%20%7D%5Cqquad%20%5Cimplies%20%5Cqquad%2030.9%7D)