Jenna takes part in health-enhancing activities fewer than 30 minutes a day. She completes many basic daily activities. How can Jenna's activity level be classified? Please Help

highly active

sedentary

physically active

moderately active

In a simplified model of the human eye, the aqueous and vitreous humors and the lens all have a refractive index of 1.40, and all the refraction occurs at the cornea, whose vertex is 2.60 cm from the retina. what should be the radius of curvature of the cornea such that the image of an object 40.0 cm from the cornea’s vertex is focused on the retina?