For the first it’s mean
second standard deviation
Answer:
27/4; 6 3/4 is the answer
Answer:
y=7 x=17
Step-by-step explanation:
2y+3=y+10
x=7+10
Answer:
C
Step-by-step explanation:
For A it would be 2x2=4 and -2x2 does not equal 4
and dont forget B. is absolut mumbo jumbo
Thus the only sane answer is C.
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