<p>On the one with the students and microscopes (I suck at math, don't laugh):
(if he gave every student a microscope, there would be six microscopes too little, and if he had twice the microscopes, he would have 6 left over. how many students)</p>
<p>i did</p>
<p>s=m+6
s=2m-6</p>
<p>m+6=2m-6
m=12
shoot</p>
<p>heh, now i realize what i did wrong. stupid.</p>
<p>i had no error too, but some people say like change "its" appearance should be their appearance.
I argue that the masks donht change teh appearance of a person. The person is the same. The intercahbngeable parst, howver, xchange teh appeareance of teh MASK, so NO ERROR.</p>
<p>I got risks acceptable on the CR question. Why? He doesn't comment on whether it is riskier or less risky, instead brushing it off by saying we eat GMOs anyway in natural food. he does spend a lot of time discussing the benefits, however.</p>
<p>I asked my English teacher (went to Harvard, if that means anything) - he said it's plural because there is NO singular antecedent for "its" to refer to: the only two possible antecedents were Masks and People (yes, it was masks, not mask, and i'm 100% sure), and both are plural so "its" is wrong so E is wrong - it should be their</p>