Answer:
d+9
Step-by-step explanation:
sum implies addition
so you would add d and 9
since d is a variable the most you can simplify is
d+9
You would divide 198 by 9.
198÷9=22
Each person would clean 22 rooms.
Answer:
1) communative property
2) difference
3) identitiy property
4) estimate
5) associative property
6) round
Step-by-step explanation:
hope this helps <3
Answer:
x= -1
Step-by-step explanation:
that's just how it be sometimes?