What addition doubles fact can you find 4+3? explain how you know

In the figure below, segment ac is congruent to segment ab: triangle abc with a segment joining vertex a to point d on side bc. side ab is congruent to side ac which statement is used to prove that angle abd is congruent to angle acd? segment ad bisects angle cab. triangle acd is similar to triangle abd. segment ad is congruent to segment ac. angle cab is congruent to angle cba.

Ineeeeed this is due tomorrow and i dont know the answer can you find all the exponents

What set does not contain -3 the set of all real numbers the set of all integers the set of all whole numbers the set of all rational numbers