13 Deandra designs an experiment to test how far a rubber band stretches when objects of different mass are suspended from it. She records her data in a chart.
Mass (g)
Stretch (cm)
Mass (g)
Stretch (cm)
10
4.
1
40
20
2
50
4.8 -
30
5.5
3
60
Which variable is independent?
C Time
A Band type
B Stretch
D Mass

i think is the letter D mass.

A

Independent variable is the one thing not changed, or not affected by the other variables. Time, stretch and mass are all changed or affected by eachother.

on june 23, 1972, the president signed title ix of the education amendments of 1972, 20 u.s.c. into law. title ix is a comprehensive federal law that prohibits discrimination on the basis of sex in any federally funded education program or activity.