Answer:
it's A 10
Step-by-step explanation:
10+20= 30
so 15×2=30
5+10=15
2( = ×2
Answer:
B)
Step-by-step explanation:
8 is even number which uses each of the digits exactly once.
Answer:
a - a or (a +(-a))
Step-by-step explanation:
A negative plus a positive is always zero if they have the same variable.
Answer:
11M + 2X + 8
Step-by-step explanation:
Hope this helps!! :))