Answer:
See below
Step-by-step explanation:
Three lengths will be a triangle only if the sum of two sides is greater than the third side.

This is a triangle.

This is not a triangle.

This is not a triangle.

This is a triangle.
I assume you mean 3(16^7-39)?
16^7 is 268435456
268435456-39 is 268435417
268435417 multiplied by 3 is 805306251
Hope this helped.
Answer:
measure it
Step-by-step explanation:
Greg a tape measure and measure it
Answer:
A
Step-by-step explanation:
X<Y means x is less than y-5 and you get A.
Answer:
7 hours
Step-by-step explanation:
120 x 7 = 840