Answer:
28
Step-by-step explanation:
10 - (-18)
=> 10 + 18
=> 28
Hoped this helped.
Answer:7777
Step-by-step explanation:
C is correct
process of elimination will help you prove your answer
a- numbers trailing a decimal before a nonzero digit are not significant
b- zeros between nonzero are significant
d-the zero before the 6 is not significant