The table shows the results of four surveys that randomly sampled 50 girls at a community center about their favorite sport at the center. swimming basketball soccer total survey 1 16 15 19 50 survey 2 15 15 20 50 survey 3 7 35 8 50 survey 4 14 18 18 50 identify surveys that are likely biased. based on the unbiased surveys, what percent of the girls at the community center are likely to choose swimming as their favorite sport? 14 % 23 % 26 % 30 %

The characteristics of two different types of reactions are shown below: reaction a: electrons are gained by the atoms of an element. reaction b: protons are lost by the atom of an element. which statement is true about the atoms of the elements that participate in the two reactions? their identity changes in both reaction a and reaction b. their identity changes in reaction a but not in reaction b. their identity changes in reaction b but not in reaction a. their identity remains the same in both reaction a and reaction b.