Answer:
d=5
Step-by-step explanation:
6x = 5
d = 6x
if 6x = 5 then d would also equal 5
To find your answer you would divide 21 by 3 which would be 7, once you've got 7 you would multiply it by 9 which would give you the amount of old houses that there is which would be 63.
Answer:
$9.60
Step-by-step explanation:
3.20x3=9.60