Answer: $900 Explanation: I assume you’re asking for how much the store pays for HD headphones. Given: $2000 total for all headphones 55 basic headphones for $20 each
Total amount for BASIC headphones: => 55 x $20 => $1100
Amount for HD headphones: => total amount of headphones - amount for BASIC headphones => $2000 - $1100 = $900