Answer:
9/10
Step-by-step explanation:
Dividing by a fraction is the same as multiplying by that fraction's reciprocal (basically the fraction flipped).
÷
= 
Answer: d = -3
Step-by-step explanation:
2d+3=7d+18
-5d=15
d=-3
Associative property moves the parenthesis
Choice B
Check google it might have it