What are the next four multiples of the unit fraction 1/2

Abe is a triangle. can you use the sss postulate or the sas postulate to prove triangle abc = triangle aed? by sss only neither apply both apply by sas only

A. 90 degrees b. 45 degrees c. 30 degrees d. 120 degrees

Simplify 15(x - 4)(x -1)-3(x + 4)(x - 1) with steps