List the events in the sample space for the experiments of tossing a coin and then rolling a die?

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

How many lines can be drawn through points j and k? 0 1 2 3

Ihave trouble finding the nth term of a linear sequence