Preston and horation have 49 video games total. horation has 11 more than preston. how many games does each person have?

Farnesene is a sesquiterpene. how many different isomers arising from double-bond isomerizations are possible? g

The length of a field is 100 yards and its width is 75 yards. if 1 inch represents 25 yards, what would be the dimensions of the field drawn on a sheet of paper?

Hi i’m not sure how to do question 20 if u could explain how to do it that’d b great