Expression consists of numbers, variables, and mathematical operations. The expression f(w)=5(w+4) is equal to f(9)=5(9)+20.
In mathematics, an expression is defined as a set of numbers, variables, and mathematical operations formed according to rules dependent on the context.
The expression is given to you is,
[tex]f(w)= 5(w+4)[/tex]
Now, if we solve the expression it can be written as,
[tex]f(w)=5w+20[/tex]
substituting the value of w, we will get,
[tex]f(9)=5(9)+20[/tex]
Hence, the expression f(w)=5(w+4) is equal to f(9)=5(9)+20.
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