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please help
Evaluate the expression when r = 8.2 and s = –3.7.



r – 2s









A.
–22.94







B.
0.8







C.
4.5







D.
15.6


Sagot :

Mathgirl22idn
Substitute. 
r – 2s ⇒ 8.2- 2* -3.7
[tex]8.2-2*-3.7 \\ use -pemdas \\ 8.2-(-7.4) \\ 15.6 \\ Answer- D.15.6[/tex]
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