Math help please thanks due soon

Answer:
[tex]\text{5. } 22\text{ gallons},\\\text{6. }8.5344\:\text{m or }8.5\text{ m rounded to the nearest tenth},\\\text{7. }49^{\circ}\mathrm{C}[/tex]
Step-by-step explanation:
Question 5:
Use the conversion [tex]1\:\mathrm{liter}=0.264172\:\mathrm{gallon}[/tex] to convert from liters to gallons:
[tex]85\cdot 0.264172\approx \boxed{22\:\text{gallons}}[/tex]
Question 6:
Use the conversion [tex]1\text{ foot}=0.3048\text{ meters}[/tex] to convert from feet to meters:
[tex]28\cdot 0.3048=\boxed{8.5344\:\mathrm{m}}[/tex]
Question 7:
Use the conversion [tex]x^{\circ}\text{F}\implies \frac{5}{9}(x-32)^{\circ}\text{C}[/tex] to get:
[tex]120^{\circ}\text{F}=\frac{5}{9}(120-32)^{\circ}\text{C}=\frac{5}{9}(88)^{\circ}\text{C}\approx \boxed{49^{\circ}\text{C}}[/tex]