Supplementary means the 2 angles add up to 180 so...
124+(2x+4)=180
124+2x+4=180
124+2x+4-4=180-4
124+2x=176
124-124+2x=176-124
2x=52
2x/2=52/2
x=26
plug in and check
124+2x+4=180
124+2 (26)+4=180
124+52+4=180
176+4=180
180=180
Congruence transformations are:
A ) Translating,
B ) Reflecting,
C ) Rotating.
$13.68 because you do [.18+.06=.24] [18•.24=4.32] [18-4.32=13.68]
10% of 13 is 1.3 so 13+1.3= 14.3
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