If a student can run the mile in 8 minutes, how many miles can they run in an hour?

The answer is:   "  7  "  ;

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    or, write as:  " 7. 5  " .

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Explanation:

To solve:

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Using a technique called "dimensional analysis" :

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  *  ;

               =      

               =       ;

               =       ;

               =        ;

               =    { 15 ÷ 2 }  

               =      "  7   " .  

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or, write as:     "  7. 5    " .

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the answer is (4,3)

since the rule for r0, 90º is (-y,x) and it was already applied to form the image, all you have to do is reverse the answer using this formula.

the answer is a if my teacher taught me correct