please help me to solve this question help me faster please

Answer:
1. [tex]p = \frac{m}{v}[/tex]
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.
Explanation: