Answer:
The value of given expression is 22.5.
Step-by-step explanation:
The given expression is
[tex]\frac{1}{4}c+3d[/tex]
Where, c=6 and d=7.
Substitute c=6 and d=7 in the given expression.
[tex]\frac{1}{4}c+3d=\frac{1}{4}\times (6)+3\times (7)[/tex]
[tex]\frac{1}{4}c+3d=\frac{3}{2}+21[/tex]
[tex]\frac{1}{4}c+3d=\frac{3+42}{2}[/tex]
[tex]\frac{1}{4}c+3d=\frac{45}{2}[/tex]
[tex]\frac{1}{4}c+3d=22.5[/tex]
Therefore the value of given expression is 22.5.
