Can someone answer this so i can check if im right?

Step-by-step explanation:

There are 3 possible triangles to find there within what appears to be one triangle. And since they are all part of the same largest triangle, they are also all similar. Just because 2 shapes may be triangles, so NOT mean they are automatically similar. Remember that!

The largest triangle is ΔABC

The triangle on the "left" is ΔADB, and

The triangle on the "right" is ΔCDB

answer is a

step-by-step explanation:

b

step-by-step explanation:

a difference is the result of subtraction. while each of these expressions has subtraction in it, a difference will be the result when subtraction is the last operation applied in the order of operations for the expression. this means subtraction must be outside of the parenthesis. only b has this.