Simplify:
-3(m - 2) - 7m
-(3m - 3 • 2) - 7m
-10m + 6
1) 180° - 146° = 34
9х - 2 = 34
9х = 34 + 2
9х = 36
х = 36 : 9
х = 4
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2) (9х - 2) + (6у + 44) = 180°
(9 * 4 - 2) + (6у + 44) = 180
(36 - 2) + (6у + 44) = 180
34 + 6у + 44 = 180
6у = 180 - 34 - 44
6у = 102
у = 102 : 6
у = 17
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I hope this helps you
lateral area= 2.pi.radius.height
6, 12, 18, 24.
8, 16, 24.
24 is your answer. Hoped I helped!