Answer:
None of them
Step-by-step explanation:
Because 30+135+45 add up to 210 then if you add 30, or 45 degrees it will be more than 180 degrees. If you subtract -15 from 210 you will get 195 which is still not right. So the best answer is none of the above
Hope this helps
Expressions equivalent would be 6b + 8 - b.
You basically would use how long they are. If you had a strip of 1/2 and a strip of 3/4... with blocks they wouldn't be the same length. The 3/4 blocks would be greater.
However if you matched a 1/2 strip with a 3/6 strip, you can see that they are the same length and are equivalent.
Of course their is a way to do it mathematically but let me know if you want to see that.
Answer:
1
Step-by-step explanation:
8/2(4)
8/8
1
