For each demand equation in Exercises 23-30, differentiate implicitly to find dp/dx.25. xp = 2429. (p + 4) (x + 3 = 48APPLICATIONS Business and Economics Rates of change of total revenue, cost, and profit. In Exercises 3336, find the rates of change of total revenue, cost, and profit with respect to time. Assume that R(x) and C (x) are in dollars. 35. R(x) = 2x, C(x) = 0.01x2 + 0.6x + 30, when x = 20 and dx/dt = 8 units per day