I'll assume you don't have the equation for these values. Are thye liner? Exponential? An easy way is to put them into excel and graph them. Then add a trend line and have it show the trend line ...

I'm trying to help one of my friends study for the math part of her PPST and I'm having issues with this one simple problem. It goes<BR><BR>How many liters of a 20% alcohol solution must be added to ...