Free points? just answer first get brainliest

1. are the triangles similar and if so why? what is the value of x? show your work.

Which of the following equations is of the parabola whose vertex is at (4, 3), axis of symmetry parallel to the y-axis and focus at (4, -3)? a.) y+3=1/24 (x+4)^2 b.)y-3=-1/24 (x-4)^2 c.)x-4=-1/24 (y-3)^2

15m is what percent of 60m; 3m; 30m; 1.5 km? the last one is km not m