Respuesta :

[tex]\huge\textbf{Hey there!}[/tex]

[tex]\mathbf{4(3.5 - 1.5) - \dfrac{1}{2}}\\\\\mathbf{\rightarrow 4(2) - \dfrac{1}{2}}\\\\\mathbf{\rightarrow 8 - \dfrac{1}{2}}\\\\\mathbf{\rightarrow \dfrac{15}{2} \approx 7.5 \approx \boxed{\bf 7 \dfrac{1}{2}}}\\\\\\\\\huge\boxed{\textbf{Therefore, your answer is: \boxed{\mathsf{Option \ B. \ 7 \dfrac{1}{2}}}}}\huge\checkmark[/tex]

[tex]\huge\textbf{Good luck on your assignment \& enjoy}\\\huge\textbf{your day!}[/tex]

~[tex]\frak{\bf Amphitrite1040:)}[/tex]

[tex]\huge \bf {Question}:—[/tex]

[tex] \boxed{\bf \: 4(3.5 - 1.5) - 1/2}[/tex]

[tex]\bf\huge Solution:—[/tex]

[tex] \sf \longmapsto \: 4*(3.5-1.5)-1/2[/tex]

[tex] \boxed{\bf \: Convert \: 1/2 \: i nto \: Decimal:—}[/tex]

[tex]\sf \longmapsto \: 4*(3.5-1.5)-0.5[/tex]

[tex] \boxed{\bf \: Subtract \: 3.5-1.5 :—\: (2 \: is \: the \: result)}[/tex]

[tex]\sf \longmapsto \: 4*(2) - 0.5[/tex]

[tex] \boxed{\bf Multiply \: 4 \: and \: 2:—(8 \: is \: the \: result)}[/tex]

[tex]\sf \longmapsto8-0.5[/tex]

[tex] \boxed{\bf \: Simply \: Subtract:—}[/tex]

[tex]\sf \longmapsto7.5[/tex]

[tex]\boxed{\bf Convert \: to \: Fraction, \: And \: Fraction\:to\:Mixed \:Fraction:—}[/tex]

[tex]\sf\longmapsto 15/2[/tex]

[tex] \boxed{\bf \: Mixed \: Fraction:—}[/tex]

[tex]\boxed{\sf\longmapsto 7 \dfrac{1}{2} }[/tex]

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[tex]\boxed{\bf Solving \: in \: another \: way:—}[/tex]

[tex]\sf \longmapsto4*2-1/2[/tex]

[tex]\sf \longmapsto4*(2)-1/2[/tex]

[tex]\sf \longmapsto8-1/2[/tex]

[tex]\sf \longmapsto \: 15/2[/tex]

[tex] \boxed{\bf \: Mixed \: Fraction:—}[/tex]

[tex]\boxed{\sf \longmapsto \: 7 \dfrac{1}{2} }[/tex]

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[tex] \boxed{\bf \: \: Answer \: i s \: Option \: B}[/tex]

[tex] \boxed{\huge\sf \: (B) \: \bf \: 7\dfrac{1}{2}} [/tex]