Answer: the answer is A
Step-by-step explanation:
The answer would be 5.794.
The thousandths place is where the 3 is. If the number to the right of it is 5 or bigger, than you can round up. If not, then you round down.
4/5n – 1/5 = 2/5n
Add 1/5 to both sides
4/5n = 2/5n + 1/5
Subtract 2/5n from both sides
2/5n = 1/5
Divide both sides by 2/5
n = 1/2
The first has 60 and the other question is associtation
Step 1: Add together the known angles.
Step 2: Subtract the sum from 180°.