Karla saved her birthday money to buy a pair of headphones. Below are this week’s advertised prices from two different stores. Store A offers them at the regular price of $299 with a 25% coupon
Store B offers them at the regular price of $299 with a 10% discount plus a $30 rebate
What is the difference between the price of the headphones at Store A and Store B?

i'm assuming it's looking for the missing length, which should be 4cm

hope this !

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

i think that you should ask google for the answer to that problem because if we don't know it google does