Substitute the values of the variables into the expression.
[tex]49\div7-2.25\cdot2^2+\sqrt[]{16}-\frac{3}{4}[/tex]SImplify the radical term. Find the square root of 16.
[tex]49\div7-2.25\cdot2^2+4-\frac{3}{4}[/tex]Simplify the exponential expression.
[tex]49\div7-2.25\cdot4+4-\frac{3}{4}[/tex]Multiply or divide from left to right.
[tex]7-2.25\cdot4+4-\frac{3}{4}=7-9+4-\frac{3}{4}[/tex]Add or subtract from left to right.
[tex]\begin{gathered} -2+4-\frac{3}{4}=2-\frac{3}{4} \\ =\frac{8}{4}-\frac{3}{4} \\ =\frac{5}{4} \end{gathered}[/tex]