Which of the following numbers could not be used to describe a distance walked? 129 feet
12 feet
- 140 feet
|-125 feet

What is another way to express 36 +32

X+ y = 5 ; x - y =3 solve using linear combination

Afrequency table of grades has five classes (a, b, c, d, f) with frequencies of 3, 13, 14, 5, and 3 respectively. using percentages, what are the relative frequencies of the five classes?