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reduce each fraction and then see if it equals 12/7
@Race100 Posting one question at a time (per thread) will likely get faster help.
Race, for question 8, what you need to do, is set up a proportion with one of the options. \[\frac{ 60 }{ 35} = \frac{ 12 }{ 7 }\] What cross products means is cross multiplying the numbers in the proportion. So you need to multiply \[60\times7\]and \[35\times12\] In order for the ratios to form a proportion, 60*7 and 35*12. Need to have the same product. Check out the file for further instruction.
I will gladly help you with the other problems if you close this post and open another. Just tag me.
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