Can someone please help me arrive at these solutions? Thank you.

4) Aerodynamic drag is the major resistance force on a (well-designed) racing bicycle. For a bike and bicyclist with a mass M = 100 kg, and a bike with frontal area A = 0.46 m2, experiments on a slope of 8% (measured with respect to the horizontal) show that the terminal speed of the bike and bicyclist VT = 15 m/s. Use these results to estimate the drag coefcient CD of the bicyclist and bike, then estimate the distance X required for the bike and bicyclist to decelerate from 15 m/s to 10 m/s on a m (i.e., horizontal) path. 4) CD = 1.23 Drag coefcient of bike + bicyclist X =116.5 111 Distance to decelerate from 15 m/s to 10 m/s on level surface