Step-by-step explanation:
from what I understand this should be the answer:
<u>x</u>. <u>y</u>
<u>12</u><u>. </u><u> </u><u> </u><u> </u><u> </u><u> </u><u>7</u><u>. </u><u> </u><u>Because</u><u> </u><u>y</u><u>=</u><u>x-5</u><u> </u><u>and</u><u> </u><u>7</u><u>=</u><u>12-5</u>
<u>30</u><u>. </u><u> </u><u> </u><u> </u><u>25</u><u> </u><u>Because</u><u> </u><u>25</u><u>=</u><u>30-5</u>
<u>15</u><u>. </u><u> </u><u> </u><u> </u><u> </u><u> </u><u>10</u><u> </u><u>Because</u><u> </u><u>10</u><u>=</u><u>15-5</u>
Step-by-step explanation:
we need the whole question
[[x]] means to round down to the greatest integer less than or equal to x.