1. **State the problem:** We are given two functions: $g(x) = x + 3$ and $h(x) = x^2$. We need to calculate: (i) $g(-5)$ (ii) $g(-7)$ (iii) $h(0)$ 2. **Recall the formulas:** - For $g(x)$, the formula is $g(x) = x + 3$. - For $h(x)$, the formula is $h(x) = x^2$. 3. **Calculate $g(-5)$:** $$g(-5) = -5 + 3$$ $$= -2$$ 4. **Calculate $g(-7)$:** $$g(-7) = -7 + 3$$ $$= -4$$ 5. **Calculate $h(0)$:** $$h(0) = 0^2$$ $$= 0$$ **Final answers:** (i) $g(-5) = -2$ (ii) $g(-7) = -4$ (iii) $h(0) = 0$