Answer:
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Step-by-step explanation:
Functions have independet variables(the value of the variable could be any number, we have no restrictions) and dependent variaariables(the values of this variables depends of idependent variables)
the problem says that <em>x</em> is the independent variable, so we say that <em>y</em> is a dependent variable. Dependent need to be replaced by funcion notation, in this case we use <em>y=f(x)</em>
So we raplace it in the equation and we have:
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we solve for <em>f(x)</em> passing <em>-6x</em> and <em>-9</em> to the right side and changing the signs, and we get:
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3x - 5 = g + x + 8
2x - 13 = g
For number 1 , since she bought 9 doer rolls, you can just multiply 12×9 and get 108. then you can divide 108 by 4 to get that answer. for number 3, you can set 40=4x (x being the amount of shells that Cameron collected.) then I believe the answer should be 10 for mandy.... number 4 , do 72×2. then 14×6. you get $144 and $84. subtract to get that you have $70 worth of extra socks. now if you know that 1 pair costs $6 , and 14 pairs cost $84 , you have to find out how many extra socks that you have, I believe it's 10 or 11 extra socks. double check just in case