Answer:
![$19=r$](https://tex.z-dn.net/?f=%2419%3Dr%24)
Step-by-step explanation:
![$19-17r=-16r$](https://tex.z-dn.net/?f=%2419-17r%3D-16r%24)
Add 17r to both sides:
![$19-17r+17r=-16r+17r$](https://tex.z-dn.net/?f=%2419-17r%2B17r%3D-16r%2B17r%24)
![$19=-16r+17r$](https://tex.z-dn.net/?f=%2419%3D-16r%2B17r%24)
![$19=r$](https://tex.z-dn.net/?f=%2419%3Dr%24)
The product of 19 x 18 is <span>342.</span>
Answer:
answer is first option
![{x}^{2} -3x - 5 = 0](https://tex.z-dn.net/?f=%20%7Bx%7D%5E%7B2%7D%20%20-3x%20-%205%20%3D%200)
wherein, a = 1, b = -3, c = -5
10.99 +11.67+ 3.64 + 2.83 = 29.13 SO THE TAX EQUALS 87 CENTS
The third and fourth options.