D Question 8 1 pts Using a specific method, your calculated density of aluminum is d1 = 2.60 g/cm3 Using a different method, your calculated density d2 = 2.82 g/cm. Calculate the percentage difference between the two methods (TWO DECIMAL PLACES). Just put the number, no need for the % sign D Question 9 1 pts Using the rules of significant figures, calculate the summation of A = 25.7 and B = 0.58: D Question 10 1 pts Using the rules of significant figures, calculate the MULTIPLICATION of A = 7.802 and B = 4.46