1. The problem asks to identify two equations that represent the relationship between $x$ (camel rides) and $y$ (elephant rides). 2. The first type of equation is a linear equation with positive coefficients representing a total constraint, such as $5x + 2y = 70$. 3. The second type is a linear equation expressing $y$ in terms of $x$ with a negative slope, such as $y = -\frac{2}{5}x + 14$. 4. These two equations together describe the relationship: one as a total constraint and the other as a function showing how $y$ changes with $x$. 5. Therefore, the two answers are: $$5x + 2y = 70$$ and $$y = -\frac{2}{5}x + 14$$