Triangles ABD and ACE are similar right triangles. which ratio best explains why the slope of AB is the same as the slope of AC

Q1) jin loves carrot yesterday she ate ½ of here carrots and today she ate 2/3 of the remaining carrots. she then discover that she has 12 carrots left. yesterday she must has started with carrots? a)36 b)48 c)60 d)72

What is sin 7x/4 ? i need on this urgent trig

2y= 3 2 x−2 y = − 1 3 x + 1 y=− 3 1 x+1