To sell a new chocolate bar the manufacturer advertises "20% or more for free" if a standard
chocolate bar is 50g what size is the new bar

60 grams

Step-by-step explanation:

If it was 100 grams, and you added 20 percent, you'd have 120 grams, right

But it is half the size, so you end up with half of that, 60 grams.

none of the above.

for one of the equations to be used in the process, there has to be a term in the equation since squared is .

since there is only a term in the first equation, we cannot derive a from completing the square.

solving with completing the square

step-by-step explanation: