Answer:
thats a tough one
Step-by-step explanation:
The correct option is B. Distributive property
Given,
On solving the above equation,
multiplying both sides by 3 we, get

now subtracting 21 from both the sides,

dividing both the sides by 2 we get,

Since in the above steps we follow all the giving property except the distributive property.
Hence the correct option is B. Distributive property.
For more details follow the link:
brainly.com/question/13130806
0.75 miles
15 divided by 20 as its in proportion
I missed the part where thats my problem