An investment grows according to the DE dy = ry + I(t), dt where 100r is the nominal interest rate and I(t) is the rate of new capital investment. y(0) = 3 000, r = 0.06 and I(t) = 120. Suppose that Applying the Runge-Kutta method, with a step size of h =1 and Y0 = 3 000 = y(0) to find the value of the investment after one year, will yield:

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