Answer:
17
Step-by-step explanation:
12 -6 divided by 3 is 2, so 15+2 is 17
None, because you must add the 2 shortest sides and the total must be greater than the longest side in order to be able to make a triangle.
Answer:
see below
Step-by-step explanation:
3+5(5+7−3−32)
=3+5(5+4−32)
=3+5(9−32)
=3+(5)(−23)
=3+−115
=−112