Answer: 1- 36 and 45 LCM is 180
2- 42 and 105 LCM is 210
3- 254 and 231. I kept on getting 58674 so I don’t really know what the answer is, sorry
Answer:
your answer will be 416 square millimeters
Step-by-step explanation:

hope it helps..
have a great day!! :)
Answer:615.44
Step-by-step explanation:
The answer would be 516.66666667 is your answer have a very nice day
-4
Because 15x-7x= 8x
8x+5x= 13x
13x= -52
-52 / 13= -4
x = -4