At 11:00 am, here's what we know about two airplanes: Airplane #1 has an elevation of 52680 ft. and is descending at the rate of 900 ft/min. Airplane #2 has an elevation of 3680 ft. and is climbing at the rate of 850 ft/min.

(1) Let t\displaystyle {t} represent the time in minutes since 11:00 am, and let E\displaystyle {E} represent the elevation in feet. Write an equation for the elevation of each plane in terms of t\displaystyle {t}.
plane #1: E(t)=\displaystyle {E}{\left({t}\right)}=  
plane #2: E(t)=\displaystyle {E}{\left({t}\right)}=  

(2) At what time will the two airplanes have the same elevation?
t=\displaystyle {t}= minutes after 11:00 am  

(3) What is the elevation at that time?
E=\displaystyle {E}= feet  

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