Let the total bill be x. We have:
<span>0.15x > 21 <-- Since 15% is 0.15 using inequality calc. x </span>>$140
412-217
195 units
Just subtract them and that would be the distance I’m pretty sure
48 different <span>lunches can be ordered from the restaurant's lunch special menu</span>
The discriminant is the part of the quadratic formula underneath the square root symbol: b²-4ac. The discriminant tells us whether there are two solutions, one solution, or no solutions.
