Answer:
Shorts = 112 and t shirts = 165
Step-by-step explanation:
Let S = shorts
Let T = t shirts
T + S = 277
$2T + $3S = $656
-2(T + S) = 277          so    -2T -2S = -544
2T + 3S = 656          so      2T + 3S = 656
                                          ------------------------
SO:  (subtract T's cancel out)   1S = 112
                                            divide by 1  so S = 112
Plug S into the top equation: T + s = 277   T + 112 = 277  so T = 165
 
        
             
        
        
        
Answer:
17
Step-by-step explanation:
a[2]+b[2]=c[2]
8*8+15*15=hypotenuse.
64+225=289

hypotenuse=17