How do you solve number 7?

b = 4 =16=21 3 - V229) form . 6. Use the information provided to write the equation of the ellipse in standard Center: (-9,-5) Vertex:(-9,-16) Focus (- 9, - 5 + 61/2) ? = at+c ( x + 9 ) ( y + 5 ) ? 62:441- 8.49 432.51 441 =1 62= 432.$1 Jane olneo not 7. Whispering Gallery. The figure below shows the specifics for an elliptical ceiling in a hall designed to be a whispering gallery. In a whispering gallery, a person standing at one focus of the ellipse can whisper and be heard by another person standing at the other focus, If the hall below is 140 feet in length with a 30 foot tall ceiling at its highest point, how far from the end ordinil bo walls will the foci points be? 0 = es - val noiJosa alnoo erit yheer