Answer:
Step-by-step explanation: you will need
240^2 / 2(70*40 + 70*50 + 40*50) = 3.46 sheets
9/10 is equivalent to 90/100 and the answer under mine or above or the other answer should be reported. They got points for a question they did not answer correctly.
The han dynasty lasted 215 years old
The answer is 4 my good man
