The answer is 175 square inches because you have to multiply 5in•7in to get 35inches per picture and since there are five you have to multiply by 35•5=175
Put it all into the same measurement unit - Kim: 48,600 seconds. (13.5*60=810, 810*60=48600) Javis: 50,700 seconds. (845*60=50,700) Monica: 49,500 seconds.