Tickets to the zoo cost $14 for adults and $10 for children. a group of 12 people went to the zoo, and the tickets cost $140. the system of equations models this situation, where x is the number of adults and y is the number of children.
x+y=12
14x+10y=140
how many adults and how many children were in the group?

a.
5 adults and 7 children

b.
6 adults and 6 children

c.
7 adults and 5 children

d.
8 adults and 4 children

If your score on your next statistics test is converted to a z score, which of these z scores would you prefer: minus2.00, minus1.00, 0, 1.00, 2.00? why? a. the z score of 2.00 is most preferable because it is 2.00 standard deviations above the mean and would correspond to the highest of the five different possible test scores. b. the z score of 0 is most preferable because it corresponds to a test score equal to the mean. c. the z score of minus2.00 is most preferable because it is 2.00 standard deviations below the mean and would correspond to the highest of the five different possible test scores. d. the z score of minus1.00 is most preferable because it is 1.00 standard deviation below the mean and would correspond to an above average