Answer:
The x in this question is 151 degrees
Answer:
let's take
y=0
when y=0,
y=x-1
therefore,
0=x-1
when we cross -1 the other side it becomes a positive. so when y=0, x=1.
Answer:
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15 books, because it asked for DIFFERENT books not the same. Just take the same book away from each individual child and add the rest and it equals 15.