Step-by-step explanation:
Yes because it consists of letters
A postulate isn't required to be proven
The answer is 55 and 25 (25)x2=50, 50+5=(55), 55+25=80.
Answer:
-5
Step-by-step explanation:
7−12
=7−12
=7+−12
=−5
Answer: f
Step-by-step explanation: