Answer: 2y=-6.4 = y=−3.2
-4y= -3.2 = y=0.8
Step-by-step explanation:
only answering what i can sorry
Answer: DF = 4 in
Step-by-step explanation:
Here in triangle DEF,
In which DE = 4,
, and 
Since, 
⇒ 
⇒ 
⇒ 
Thus, first option is correct.
Well, you would I need to multiply all the options : 8x10x12x11
Answer is *10,560*