Answer:
1 possibility is there for the the position of the fourth vertex.
3 terms
when you combine like terms you are left with 10x + y + 8 which is 3 terms.
The final bill will come to $29.40.
To get this answer, you must multiply 24.50 by 20% to get 4.90. Then, you add the two decimals to get the final bill price of $29.40.
You have x , x+7, and 7x-7. When you add those up and equal it to 180 you can get your x. X equals 20
So one angle is 20 degrees
The second angle is 27 degrees
And the third angle is 133 degrees.
I got -648 for the product
