Answer:
C) [tex]t = 2 \frac{1}{3}[/tex]
Step-by-step explanation:
Calculation steps:
Turn [tex]2 \frac{7}{12}[/tex] as a importer fraction = [tex]\frac{31}{12}[/tex]
[tex]\frac{31}{12} - \frac{1}{4}[/tex]
[tex]\frac{31}{12}-\frac{1*3}{4*3}[/tex]
[tex]\frac{31}{12}-\frac{3}{12}[/tex]
[tex]\frac{31-3}{12}[/tex]
[tex]\frac{28}{12}[/tex]
[tex]\frac{28/4}{12/4}[/tex]
[tex]=\frac{7}{3}=2\frac{1}{3}[/tex]