Answer:
110
Step-by-step explanation:
you place 30 in the place of X, and it becomes 4×30-10. in PEMDAS, multiplication goes first and 4×30=120. 120-10=110
Answer at very bottom of picture above
if explanation need comment
513/2=256.5
which means 256 and 257 are the answers
The longest side
Think about it. The widest angle would leave a resulting long side to reach the ends of the angle
If you look at the picture, the side across from the widest angle has the longest length
Answer is b or the second option
Step-by-step explanation: