Answer: 80
Step-by-step explanation:
We can use the formula
, where
are the lengths of the diagonals.
By the distance formula,

So, the area is 
Answer:
It is 6.9
Step-by-step explanation:
6.85565
put
6.85
5 can be rounded up so
6.9 is answer
Answer: 5x+8
Step-by-step explanation: You have to combine like terms.
3x+2x=5x
5+3=8
= 5x+8
Answer:d
Step-by-step explanation:
its easy money