Pls help it is khan academy pls and thx! :)

In the diagram below, tan θ = sqrt 3. what is the value of m?

Enter the number of complex zeros for the polynomial function f(x) = x 4+ 5x² +6

The table below shows the height of a ball  x  seconds after being kicked.  what values, rounded to the nearest whole number, complete the quadratic regression equation that models the data? f(x)  =  x2  +  x  +  0based on the regression equation and rounded to the nearest whole number, what is the estimated height after 0.25 seconds?   feet