Answer:
I really don't know. SORRY
Ok for my school we have 6 weeks in stead of 9 so if the class the F is in especially if it's ap the teacher would have to change your schedule to the regular class and probably mandatory after school tutoring
Explanation:
85% efficiency of simple machine means that with 100% input, the machine will give a work output of 85%. EXPLANATION: The efficiency of a machine is the ratio of its Mechanical Advantage to its Velocity
plz GIVE BRAINLIEST + THANKS :)