Jim's Camera shop sells two high$-$end cameras, the Sky Eagle and Horizon. The demands for these two cameras are as follows: $D_S=$ demand for the Sky Eagle, $P_S$ is the selling price of the Sky Eagle, $D_H$ is the demand for

the Horizon, and $P_H$ is the selling price of the Horizon.

$D_S=229-0\mathrm{.}60P_S+0\mathrm{.}35P_H$

$D_H=275+0\mathrm{.}10P_S-0\mathrm{.}64P_H$

The store wishes to determine the selling price that maximizes revenue for these two products. Develop the revenue function for these two models. $($Enter your answer in terms of $P_S$ and $P_H)$

revenue $=$

Find the prices that maximize revenue. $($Round your answers to two decimal places.$)$

$(P_S,P_H)=(,)$