
, and
. Subtracting this from the numerator gives a remainder of

, and
. Subtracting this from the previous remainder gives a new remainder of

is not a multiple of
, so we're done. Then

It is C, "What type of paper are most greeting cards made with."
By asking students to answer un-biased, and with detail. Comparing and contrasting each others' genre preference is also useful.
Answer:
10^2+2×2b×10+2b^2 = 100+40b+2b^2
Only one section should be coloured in because it's 1/8 of the spinner. Meaning, there is one chance of landing on any colour.