Casey divided a 3 1/5 pound bag of pears among his eight friends how many pound of pears did each friend receive

Shania's test scores in 8 subjects were 88, 91, 85, 74, 69, 72, 80, and 87. shania found the middle number of her scores. which type of measure did she find?

Find dy/dx using implicit differentiation ln(20+e^xy)=y

Can someone check if i did this correct. it’s number 4 if you’re wondering.