Answer :
We are given the expression
[tex]$$
8 + 4f
$$[/tex]
and the value of [tex]$f$[/tex] is [tex]$2.5$[/tex]. Follow these steps:
1. Substitute [tex]$f = 2.5$[/tex] into the expression:
[tex]$$
8 + 4(2.5)
$$[/tex]
2. Multiply [tex]$4$[/tex] by [tex]$2.5$[/tex]:
[tex]$$
4 \times 2.5 = 10
$$[/tex]
3. Add this result to [tex]$8$[/tex]:
[tex]$$
8 + 10 = 18
$$[/tex]
Thus, the value of the expression when [tex]$f=2.5$[/tex] is [tex]$18$[/tex].
So, the correct answer is [tex]$\boxed{18}$[/tex].
[tex]$$
8 + 4f
$$[/tex]
and the value of [tex]$f$[/tex] is [tex]$2.5$[/tex]. Follow these steps:
1. Substitute [tex]$f = 2.5$[/tex] into the expression:
[tex]$$
8 + 4(2.5)
$$[/tex]
2. Multiply [tex]$4$[/tex] by [tex]$2.5$[/tex]:
[tex]$$
4 \times 2.5 = 10
$$[/tex]
3. Add this result to [tex]$8$[/tex]:
[tex]$$
8 + 10 = 18
$$[/tex]
Thus, the value of the expression when [tex]$f=2.5$[/tex] is [tex]$18$[/tex].
So, the correct answer is [tex]$\boxed{18}$[/tex].
