Answer:
9.0g/mL
Step-by-step explanation:
Significant figures are determined by using the precision of the least precise measurement (40.6 in this case). If we enter 363.71 ÷ 40.6 into a calculator, we get about 8.95837. We can only use up to the tenths place in our answer since the least precise measurement (40.6) is to the tenths place. So we need to round 8.95837 to the nearest tenth, which is 9.0.