The sum of 237 and six times the opposite of a number is 405. what is the number?
a) -28
b) -24
c) 30
d) 32
hurry my usatest prep is due soon! : d

(A) x=-28

Step-by-step explanation:

237 -6x = 405           [note that 6*(-x) is (-6x)]

  -6x = 168           [subtract 237 from both sides]

   x = -28             [divide both sides by (-6)]

answer: for each 3 girls there is 2 boys . 3: 2

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problem:

f(x) = - 2/3x + 5; f(5/2)

substitute 5/2 in for x:

f(5/2) = -2/3(5/2) + 5

simplify the right side:

f(5/2) = -5/3 + 5

f(5/2) = 10/3

f(5/2) = 10/3

i hope this !