Can someone help me explain how to do the problem? Thanks!

PROBLEM 6: (HINT: Even though we are using Heaviside functions in this problem, it is much easier if you do NOT use Laplace transforms!) Consider the two initial value problems below: dy Equation 1: d -= -0.5(1 - us(t))y + 0.5u,(t)(y - 40), >(0) = 100 Equation 2: dy = -0.5(1 - u(t) + us(t))y + 0.5(m (t) - ua(t))(y - 40), y(0) = 100. PART a) Which solution is smaller at time t = 4? PART b) Which solution is smaller at time t = 8