The sale price is going to be 17.5
0, sqrt(9), 16.00, -4, -2, and -5 are all whole numbers because they all simplify to numbers without decimals
Answer: 4/5
Step-by-step explanation:
0.8 is 8 tenths which is 8/10 in fraction form
8/10 with both sides divided by two is 4/5
hope this helps u
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![6z + 7 = 8z - 9](https://tex.z-dn.net/?f=6z%20%2B%207%20%20%3D%208z%20-%209)
![8z - 9 = 6z + 7](https://tex.z-dn.net/?f=8z%20-%209%20%3D%206z%20%2B%207)
Add sides 9
![8z - 9 + 9 = 6z + 7 + 9](https://tex.z-dn.net/?f=8z%20-%209%20%2B%209%20%3D%206z%20%2B%207%20%2B%209)
![8z = 6z + 16](https://tex.z-dn.net/?f=8z%20%3D%206z%20%2B%2016)
Subtract sides 6z
![- 6z + 8z = - 6z + 6z + 16](https://tex.z-dn.net/?f=%20-%206z%20%2B%208z%20%3D%20%20-%206z%20%2B%206z%20%2B%2016)
![2z = 16](https://tex.z-dn.net/?f=2z%20%3D%2016)
Divide sides by 2
![\frac{2z}{2} = \frac{16}{2} \\](https://tex.z-dn.net/?f=%20%5Cfrac%7B2z%7D%7B2%7D%20%20%3D%20%20%5Cfrac%7B16%7D%7B2%7D%20%20%5C%5C%20)
![z = 8](https://tex.z-dn.net/?f=z%20%3D%208)
Thus ;
![NP = 8z - 9](https://tex.z-dn.net/?f=NP%20%3D%208z%20-%209)
![NP = 8(8) - 9](https://tex.z-dn.net/?f=NP%20%3D%208%288%29%20-%209)
![NP = 64 - 9](https://tex.z-dn.net/?f=NP%20%3D%2064%20-%209)
![NP = 64 - 4 - 5](https://tex.z-dn.net/?f=NP%20%3D%2064%20-%204%20-%205)
![NP = 60 - 5](https://tex.z-dn.net/?f=NP%20%3D%2060%20-%205)
![NP = 55](https://tex.z-dn.net/?f=NP%20%3D%2055)
Done...
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