Answer: I do not understand the options you gave but but cos30º is equal to
/2 which is 0.86602540378.
Answer:
See Explanation
Step-by-step explanation:

1q+2x-1 liner #1 liner # is 18% one
The product of a number y and 12 or 12 times a number y. These are both equivalent expressions to 12y
Answer:

Step-by-step explanation:
Given expression:

Remove parentheses:

Collect like terms:

Combine like terms:
