Answer:
1.
![p = (m)/(v)](https://img.qammunity.org/2022/formulas/geography/high-school/e9v8lpjwo4hdnlz5vlmm5emlgu1dmic6ni.png)
2. The equation to calculate Density is Mass / Volume. You are given that the density is 5.45 and the mass is 65; 5.45 = 65 / v. So v = 65 / 5.45; v = 11.93 mL (or if you want your answer to consider significant figures, v = 12 mL).
3.
m = 43.5 g
V = 50 mL
d = 43.5 g / 50 mL = 0.87 g/mL
Density of this cooking oil is 0.87 g/mL.
Step-by-step explanation: