Answer:
Step-by-step explanation:
we have the expression:
We need to multiply the two terms in the first parenthesis by the two terms in the second parenthesis:
we solve each term taking into account the law of signs
(-)(-)=+
and
(+)(-)=-
also for the first term we use that 
thus we have:
it can be simplified a little more if we factor an r of the second and third term:
X= fancy, y= plain
x+y= 7
28x+ 15y=131
solve by substitution
I think is A Please tell me is right?
Answer:
40
Step-by-step explanation:
The answer is 40. There are 4 judges, and each gave him a 10. This can be shown by an equation.
1. 4 * 10 = total score
2. 40 = total score.
Hope this helps! (Please consider giving brainliest)
I don’t see what your asking, theres no question. This is a statement.
