Okay so not really for a assignment or anything but my teacher is putting in grades. I had a 64, then my teacher put a 100 in the grade book. the assignment is worth 60% of my grade. my grade only went up 2 points. shouldn't my average grade be higher?

The revenue each season from tickets at the theme park is represented by t(c)=5x. the cost to pay the employees each season is represented by r(x)=(1.5)^x. examine the graph of the combined function for total profit and estimate the profit after four seasons