Question

What is g(21) equal to? g(t) = t-6/3 g(21) = [1]

Answer 1

You have to plug the given input in the formula: if you substitute t with 21 you have

$g(t) = \dfrac{t-6}{3} \implies t(21) = \dfrac{21-6}{3}=\dfrac{15}{3}=5$