Factorise
121ײ + 110 +25 y²

Solve the system of equations. y= 2x y= x^2 - 15

Ineed if you could explain and give me the answer you! this needs done

Consider the functions below. function 1 function 2 function 3 select the statement which is true about the functions over the interval [1, 2] a b function 3 has the highest average rate of change function 2 and function 3 have the same average rate of change. function and function 3 have the same average rate of change function 2 has the lowest average rate of change d.