In your biology class, your final grade is based on several things: a lab score worth 25% of your final grade, Two major tests each worth 22.5% of your final grade, and a final exam worth 30% of your final grade. What is your grade for the class if you received the following grades: 92 on the lab, 81 on major test 1, 93 on major test 2, and 85 on the final exam. Round your answer to the nearest whole number.