Answer:
309
Step-by-step explanation:
8x + 300 = 2772
subtract 300 from both sides of the equal sign
8x = 2472
divide 8 from both sides of the equal sign
x = 309
y = -1
(y+1)/(x-8) = (-1+1)/(-2-8)
(y+1)/(x-8) = 0
y+1 =0
y= -1
( -0.5 , 6.5 )
400
5(1+3)^2
(5+15)^2
20^2
960
you have to multiply 12*8*10
12*8=96
96*10=960
1 acute and 2 right (the last option)