What is the value of x?

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x =

F(x) = x2 − 9, and g(x) = x − 3 f(x) = x2 − 4x + 3, and g(x) = x − 3 f(x) = x2 + 4x − 5, and g(x) = x − 1 f(x) = x2 − 16, and g(x) = x − 4 h(x) = x + 5 arrowright h(x) = x + 3 arrowright h(x) = x + 4 arrowright h(x) = x − 1 arrowright

1yd 1 ft = 1 1/12 1 1/3 1 1/2 1 1/6

Lana's family entered a 5-kilometer race lana's average step length is about 0.5 meter how many steps will she need to take the finish