(1).
[tex]4^3\times(0.6+3.6)\times\frac{1}{0.3}[/tex]
Let us first reduce what is in the parenthesis
[tex]4^3\times(4.2)\times\frac{1}{0.3}[/tex]
and now let us evaluate the exponent 4^3
[tex]\begin{gathered} 4^3=4\times4\times4=64 \\ \rightarrow64\times4.2\times\frac{1}{0.3} \end{gathered}[/tex]
now we multiply 64 by 4.2
[tex]\begin{gathered} 64\times4.2=268.8 \\ 268.8\times\frac{1}{0.3} \end{gathered}[/tex][tex]\textcolor{#FF7968}{=896.}[/tex]
(2).
Similiarly,
[tex]2^4+(2.75+1.75)\times\frac{1}{0.9}=\textcolor{#FF7968}{21.}[/tex]
(3).
[tex]\frac{5.6}{2^3}+(12.75+7.45)=\textcolor{#FF7968}{20.9}[/tex]
