Answer:
f = 2
Explanation:
f(x) = x2 ... when 'x' is equal to 5
So...
1.) Plug in 5 for the variable 'x'
f(5) = (5) * (2)
2.) Simplify both sides of the equation
5f = 10
3.) Divide both sides by 5
5f /5 = 10/5
f = 2
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Hope I helped!!!
GL :)