### 2 Answers

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- JimLv 71 month ago
For h(7n-5), sub that into the function for x

h(x) = √(x+5)

h(7n-5) = √((7n-5) -5)

= √7n, n>0 ((for Real answers))

- llafferLv 71 month ago
Again, exactly like your other questions: substitute an expression in for the variable:

h(x) = √(x + 5)

Substitute (7n - 5) in for x and simplify:

h(7n - 5) = √(7n - 5 + 5)

h(7n - 5) = √(7n)

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