Answer:
found this i think this should help with your question
Step-by-step explanation:
It only has two number sentences because 81 divided by anything else wont work only 9 would. Also since 9 times 9 is equal to 81
Answer
If d equals diameter the radius is 9
Step-by-step explanation:
Answer:
for number one, look at the screenshot attached, that should help
Step-by-step explanation:
Answer:
19 km
Step by step explanation: