4,500 mL should/will be the right answer
<span>5×(2-x)+9-7x
=5</span>×2-5<span>×x+9-7x
=10-5x+9-7x
=10+9-(5x+7x)
=19-12x
That's your solution. ^_^</span>
Not unless the digits in each period are also in the same order. That is, the digit in each PLACE must be the same.
The absolute minimum of this graph is y=-10
