The first question is c i believe, I dont have time to answer the others
Answer:C or 11
Step-by-step explanation:
3x²-1
First you insert x... which is 2
3(2)²-1
then you square the 2. (multiply it by itself)
3(4)-1
Then you multiply 3 by 4 to get 12
12-1
And then you subtract for your answer
11
which expression is equivalent to 6-(-8)
3/5 is the answer.
Explanation:
Easy way is make them into decimals, then divide.
So 3/10 = .3
And 2/4 = .5
So .3/.5 = .6
Or 6/10 = 3/5
Hope this helps! Also nice zenitsu pfp