The answer is 4 because 2--2 the two negatives make it a positive so its 2+2=4
Answer:
If the measures of the corresponding sides of two triangles are proportional then the triangles are similar. Likewise if the measures of two sides in one triangle are proportional to the corresponding sides in another triangle and the including angles are congruent then the triangles are similar
If n is 2, you substitute 2 for n and multiply 5(2)+8= 10 +8 = 18
