Could someone potentially help me with this activity, i am confused. Thanks.

Activity 3: Suppose that a car dealer offers to sell you a car for $16500 or for payments of $275 per month for six years. To figure out what monthly interest (x) you're actually being charged, you'd just have to solve p(x ) =0 where p(x) = 60x(1 +x) -(1+x)" +1 a) (-5-10 min) Use Maple to plot (x) on an appropriate interval to show the root. Hint: Remember that x represents monthly interest rate expressed as a decimal, so think about what numbers make sense for your domain. b) (-10 min) Use the IVT to prove that a root exists for the given function. This part is to be done by hand