please solve the question mathematically

2. The following experimental data have been measured inside a boundary layer over a flat surface. a. Fit the velocity profile to an equation of form Vx/U=B1(y/)+B2(y/)2 and obtain the constants. Show the fitting results in excel. Do not use lines to connect the data points in your excel file. b. Determine the thickness of the boundary layer as a function of x and compare it with