Answer:
B
Step-by-step explanation:
Given
7 [tex]\frac{3}{4}[/tex] - [tex]\frac{1}{2}[/tex]
= 7 [tex]\frac{3}{4}[/tex] + (- [tex]\frac{1}{2}[/tex] ) ← equivalent expression
= [tex]\frac{31}{4}[/tex] - [tex]\frac{2}{4}[/tex]
= [tex]\frac{29}{4}[/tex] or 7 [tex]\frac{1}{4}[/tex]
