Step-by-step explanation:
I'm going to assume you meant to write
in the equation as +1 - 1 wouldn't make much sense since they would just cancel out.
a. 
b. 
c. 
Answer:
I don't know
Step-by-step explanation:
Dapat kasi mag-aaral ka mabuti para ikaw ay magiging matalino
Answer:
m a t h
Step-by-step explanation:
i am in middle school so i dont know
Answer:
1
Step-by-step explanation:
because 1/2 time 1 = 1/2