Answer:19) x=53. 20) x=143
Step-by-step explanation: it’s a co interior angle so they should add up to 180 so u do 180-127=53
Step-by-step explanation:
(a^2+3b)/(c-2d)
substitute a=3,b=8,c=2,d=5
(3^2+3(8))/(2-2(5))
=(9+24)/(2-10)
=33/(-8)
=-4.125
I’m gonna say it’d be 12x b/c 3x*4 would be 12x
Attachment below to also help but
2 & 1/7 is 15/7 when in a improper fraction
So 15/7 divide 2/7
Now which 2/7 to 7/2 and divded sign now become a multiplication sign
So now we have
15/7 x 7/2 which is 105/14
Then when multiply that becomes 105/14
105 divided by 7/ 14 divided by 2 (since the greatest common factor between 14 and 105 is 7) then when divided that gives 15/2