Please help me to figure out as soon as possible! With CLEAR WRITING! Thanks!

-An economist models the output of a farm using the Solovv model: This model gives the output PH] 13 III of the farm in terms of the value of its equipment 19(1) 2 i] by Pm = omi. It is assumed that the equipment depreciates at a constant rate ti 7.:- [l and that a constant fraction I] s: r d: 1 of the output is reinvested into equipment. This leads to the DDE Q = H" 6Q. {a} ? Sketch a phase portrait for P? indicating the location and stability of any iii-ted poin . {b}- In suitable units1 the depreciation rate of a certain farm's equipment is :5 = i and the initial value of its equipment is 191:0} = 3. If its production initially decremes'. what can you say about the rate of investment 11*? (c) -After many years... a second farm is observed to have essentially the same output as the rst farm. It is known that its rate of investment is r = % What can you say about the rate of depreciation of the second farm's equipment