-5/2 is equivalent to -2.5, and if you multiply 2.5 by 2 you get 5, and you have to have the negative, so add that to the 5 and you get -5. Hope this helps!
Answer: The answer should be B) -3. To solve the equation you have to rewrite the equation.
9+(<span>6•16)10-22
9+(96)10-22
9+960-22
969-22
947
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90 = k*15
constant of proportionality = 80 / 15 = 6 Answer