Answer:

Step-by-step explanation:
A = 30° and r = 12







.
Happy to help :)
To subtract 7 from 102, you have to regroup. You subtract 2 from 100, and 2 from 7, so it is 100-5. 100-5 is 95. The answer is 95. If you don't understand, tell me in the comments. This is just one method of subtracting.
Answer:
7212960
Step-by-step explanation:
You have to round up since the number in the ones place is a 5.
Answer:
We need to see the expressions given
Step-by-step explanation: