23.44 / 20 = 1.172 rounds to 1.17 per lb <== this is cost per lb...this is telling u how much each lb of dog food costs
20 / 23.44 = 0.85....this is lbs per dollar....this is telling u that u r getting 0.85 lbs for a dollar
For #8, it's approximately 2.5
Hello, Julio can be no younger then 11. Hoped I helped!
It may be a special right triangle which would make the angles 45, 45, and 90

The given pair of angles are vertical opposite angle pair so, they are equal. i.e