Answer:
C
Step-by-step explanation:
They can't form a triangle because the sum of 2 sidelengths is ALWAYS greater than the 3rd side in a triangle. Because 5+7=12<14, this means that it can't form a triangle.
Answer:
the estimated answer is 10
Step-by-step explanation:
you have to round both numbers to the nearest ten and then subtract
Answer:
27/10
Step-by-step explanation: