The tables show some input and output values:

table a
input output
1 7
2 7
2 9
4 5
table b
input output
6 1
7 3
8 2
9 5

which tables represent functions?
only a
only b
both a and b
neither a nor b

At the many chips cookie company they are serious about the number of chocolate chips in their cookies they claim that each cookie hasn't c chips. if their claim is true there will be 200 chips in 10 cookies

What is (28 + 7 + 6 + 3) x 1/2 show your work

Two language majors, anna and megan, took exams in two languages. anna scored 85 on both exams. megan scored 74 on the first exam and 85 on the second exam. overall, student scores on the first exam had a mean of 82 and a standard deviation of 4, and the second exam scores had a mean of 71 and a standard deviation of 13. a) to qualify for language honors, a major must maintain at least an 85 average across all language courses taken. so far, which of anna and megan qualify? b) which student's overall performance was better?