The percents of different drinks sold at a snack shop are shown in the circle graph. what percent of the drinks sold were colas?

If this was you image:
Ice tea: 30%
Lemonade: 32%
Colas: ?

The percent of the drinks sold that were colas is 38%.

One whole circle is equivalent to 100%. Since the ice tea takes up 30% of the circle and lemonade takes up 32% of the circle, the remaining portion for colas is no longer 100%. We simply deduct these percentages from 100% to get the percentage of colas which is 38%.

Do this problem by substituting the points one by one into  y < x^2 - 4x + 3.for example, determine whether (1,0) is in the solution set.  write:     0< (1)^2 - 4(1) + 3, or 0 < 1 - 4 + 3, which is false.  thus, (1,0) is not in the solution set.  go on and check the other two points, (-3,0) and (2,-1).