Simplify 3a^2-a^2 pleae

Asquare is dilated by a scale factor of 1.25 to create a new square. how does the area of the new square compare with the area of the original square? a)the area of the new square is 1.25 times the area of the original square. b)the area of the new square is 2.50 times the area of the original square. c)the area of the new square is 1.252 times the area of the original square. d)the area of the new square is 1.253 times the area of the original square.

Choose the point slope form of the equation below that represents the like that passes through the points (-6,4) and (2, 0)

Look at this pattern ; 1,4,9, number 10000 belongs in this pattern . what’s the place of this number?