We know that the deck of cards contain half red and half black cards or you can say we have 26 red cards and 26 black cards.
we have to find probability of red cards from a deck of cards
so,
probability (selecting red card) = 

                                                     = 
 Probability ( selecting red card ) =
Probability ( selecting red card ) =  <span>
 Answer
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1.When all the three cut outs of the angles A, B, C placed adjacent to each other at a point, then it forms a line forming a straight angle, i.e. 180°.
Flence, it is proved that the sum of the three angles of a triangle is 180°.
Therefore, ∠A + ∠B + ∠C =180
 
        
                    
             
        
        
        
Answer:
By putting some values of x find the y values
Step-by-step explanation:
for example, let x=-1 and x=2y
 then -1=2y
 y=-1/2
I hope it helps