Answer:
a. 2.5
b. 5
c. 8.5
Explanation:
An algebraic expression for '5 less than the sum of x and 7' is:
[tex]\begin{gathered} x+7-5 \\ =x+2 \end{gathered}[/tex]
When x=1/2
[tex]\begin{gathered} x+2=\frac{1}{2}+2 \\ =2\frac{1}{2} \\ =2.5 \end{gathered}[/tex]
When x=3
[tex]\begin{gathered} x+2=3+2 \\ =5 \end{gathered}[/tex]
When x=6.5
[tex]\begin{gathered} x+2=6.5+2 \\ =8.5 \end{gathered}[/tex]
