ANSWER:
10 bundles
Explanation:
We have that the area can be calculated by multiplying both sides (length and width) , like this:
![\begin{gathered} L=18\text{ ft} \\ W=10\text{ ft 6 in} \\ 1\text{ ft is 12 in} \\ \text{ therefore:} \\ W=10ft+6in\cdot\frac{1\text{ ft}}{12\text{ in}}=10ft+0.5ft=10.5\text{ ft} \\ \\ \text{Floor area:} \\ A=L\cdot W=18\cdot10.5 \\ A=189ft^2 \end{gathered}](https://img.qammunity.org/2023/formulas/mathematics/college/fyqgt2ai0zmyw6dx3lhmwnagsfnewru1yp.png)
Since each strip is 23 ft² to calculate how many strip will be used we need to divide the area of the whole floor by the area of each strip. Therefore:
![\text{ number of strips =}(189)/(23)=8.22](https://img.qammunity.org/2023/formulas/mathematics/college/waot4q4n4b3bm2areeblhu7aoa3z8s2jdk.png)
Although there must be 20% more strips, we must multiply that value by 1.20, therefore:
![\text{ number of strips }=8.22\cdot1.2=9.86\cong10](https://img.qammunity.org/2023/formulas/mathematics/college/debjihdxbvu9dcn3l8nss0l3rhikmrhnh3.png)
It will take 10 bundles of strip flooring to cover the rectangular floor