Answer: dimond
Step-by-step explanation:
There are 11 days until Richards's concert.
Susie's concert is 7 days after Richard's.
so Susie's concert: 11+7=18
answer
D. 11+7=18
Answer:
Supplementary angles
Adjacent angles
Step-by-step explanation:
They add up to a straight line, which is 180 degrees, therefore they are supplementary.
They also share a side and the corner point, hence adjacent.