Answer:
2. D. division property of equality
3. B. transitive
Step-by-step explanation:
2. well, we divide both sides by the same factor 3.
3. the same reason as for 4. we are using that if A = B, and B = 30, then A =30 in both lines.
2/5 is fraction form.
0.4 is decimal form btw.
2 sec (θ ) − 2 tan ( θ )