2/3 = 0.6666666...... (I dont know how to put a bar above the 6)
3/11 = 0.27 (with a bar above the 27
8.4 (with a bar above the 4)
My answers are 13. B ; 14. C ; 15. C.
Step-by-step explanation:
1) Simplify 9 - 6 to 3.
2) Simplify 3² to 9.
3) Simplify 48 ÷ 8 to 6.
4) Simplify.
Therefor, the answer is 3.
Please, one problem at a time. Haven't you started any of these?
What is a+b? Write out a and b, one over the other, and then combine like terms:
1i + 4j
-4i - j
-----------
-3i + 3j (answer to "a+b").
Please try some of the other problem, sharing your work or at least asking questions whose answers might help you get started.