One hundred times the quantity nine plus four

Is δ pmr similar to δ smn ? if so, which postulate or theorem proves these two triangles are similar?

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

Find the values of y: 3y^3(y^2+ 2/3y)=0