-1.293857291 rounded to the nearest hundredth

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

An object is translated by (x + 4, y - 2). if one point in the image has the coordinates (5, -3), what would be the coordinates of its pre-image? (9, -5) (1, -5) (9, -1) (1, -1)

Gabrielle's age is two times mikhail's age. the sum of their ages is 84. what is mikhail's age?