The cash flow on total assets ratio is calculated by: Select one: a. Dividing net cash flows from operating activities by average total assets. b. Dividing total cash flows by average total assets. c. Dividing average total assets by cash flows from investing activities. d. Dividing average total assets by total cash flows. e. Total cash flows divided by average total assets times 365. Solving Initial Value Problems Solve the initial value problems in Exercises 15-20. dy 15. +2y = 3, y(0) = 1 dt dy 16. t + 2y = t, t> 0, y(2) = 1 dt dy 17. 0 + y = sin 0, 0 > 0, y(/2) = 1 do 18.0 dy de 20. 19. (x + 1) 2y = 0 sec 0 tan 0, 0>0, y(/3) = 2 dy et dx x + 1' dy dx - 2(x+x)y: + xy = x, y(0) = = = -6 x > -1, y(0) 21. Solve the exponential growth/decay initial value proble a function of t by thinking of the differential equation order linear equation with P(x) = -k and O(x) = 0: