X= -1 + i square root o7 or -1 - i square root 7.
Answer:
$21
Step-by-step explanation:
70%=0.7
30*0.7=21
I'm not certain but I'm pretty sure it's 1000+600+800=2400
T=1000= the longest side
S=1/2 (t+200)=600= shortest side
M=t-200=800=middle side.
I think it’s A sorry if I’m wrong
