Solve similar triangles solve for x can someone answer please help

Which system of linear inequalities is graphed? can somebody pleasssse

5x + 2 = 12 solve the following equation. then place the correct number in the box provided.

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