Answer:
The area is about ![8\frac{13}{25}](https://tex.z-dn.net/?f=8%5Cfrac%7B13%7D%7B25%7D)
Step-by-step explanation:
To find the area you must use the equation A=
h
Answer:
467.99 units²
Step-by-step explanation:
The formula for finding the surface area of a cone is:
![A=\pi r(r+\sqrt{h^{2}+r^{2}})](https://tex.z-dn.net/?f=A%3D%5Cpi%20r%28r%2B%5Csqrt%7Bh%5E%7B2%7D%2Br%5E%7B2%7D%7D%29)
Our values are:
r = 8
h = 7
π = 3.14
Let's plug the values into the formula
![A=\pi 8(8+\sqrt{7^{2}+8^{2}})](https://tex.z-dn.net/?f=A%3D%5Cpi%208%288%2B%5Csqrt%7B7%5E%7B2%7D%2B8%5E%7B2%7D%7D%29)
![A=\pi 8(8+\sqrt{49+64})](https://tex.z-dn.net/?f=A%3D%5Cpi%208%288%2B%5Csqrt%7B49%2B64%7D%29)
![A=\pi 8(8+\sqrt{113})](https://tex.z-dn.net/?f=A%3D%5Cpi%208%288%2B%5Csqrt%7B113%7D%29)
![A=\pi 8(8+10.63)](https://tex.z-dn.net/?f=A%3D%5Cpi%208%288%2B10.63%29)
![A=\pi 8(18.63)](https://tex.z-dn.net/?f=A%3D%5Cpi%208%2818.63%29)
![A= (3.14)(8)(18.63)](https://tex.z-dn.net/?f=A%3D%20%283.14%29%288%29%2818.63%29)
![A= (25.12)(18.63)](https://tex.z-dn.net/?f=A%3D%20%2825.12%29%2818.63%29)
units²
Answer:36
Step-by-step explanation: first I did
9÷5=1.80 per box.
so then I did 1.80 x 20 which = 36
Mrs.Brown will receive $19.80 back.