Answer plz I have have been struggling for a long time

Write 5(6x+4)-2(5x-2) in the form a(bx+c) where a, b and c integers and a> 1

Determine the domain and range of the given function. the domain is all real numbers all real numbers greater than or equal to –2{x: x = –2, –1, 0, 1, 2}{y: y = –2, –1, 0, 1, 2}. the range is all real numbers all real numbers greater than or equal to –2{x: x = –2, –1, 0, 1, 2}{y: y = –2, –1, 0, 1, 2}.

Which is the focus of a parabola with equation y2=4x