A partially filled pool has $10{,}000$ liters of water in it when Finn begins to fill it with a hose on a hot, sunny day. The volume, $V$, in liters, of water coming out of the hose in $m$ minutes is given by the function $V(m)=20m$, and the volume, $E$, in liters, of water evaporating in $m$ minutes is given by the function $E(m)=0.1m$. Let $P$ be the total volume, in liters, of the water in the pool $m$ minutes since Finn started filling it. **Write a formula for $P(m)$ in terms of $V(m)$ and $E(m)$.** $\qquad P(m)=$ [[☃ expression 3]] **Write a formula for $P(m)$ in terms of $m$.** $\qquad P(m)= $ [[☃ expression 4]]