Three letters weigh 1/2 ounces,
1/4 ounces, and
5/12 ounces
What is the total weight of the letters? Simplify your answer.

7/6

Step-by-step explanation:

You would change 1/2 to 6/12, 1/4 to 3/12, and you wouldnt change 5/12. you add them all together to get 14/12 which you can simplify to 7/6. Sorry if im wrong.

225x²+4=0

225x²=0-4

225x²=-4

x²=-4/225

x=±√-4/225

to find the perimeter, you add up all the lengths of the sides. in this case you would have to add up 18+22+40+80 which equals 160.