Answer:
the principal
Step-by-step explanation:
21.04
the 8 is closest to 10 so that would make the 3 a 4.
3/2x+2y-7/2
x = 2y - 7
x + y = 47
substitute x
2y - 7 + y = 47
3y = 54
y = 18
x = 2x18 - 7
x = 29
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