Kelly has an ant farm that she expands each month. Her expansion report is shown below. Month (m) Square Inches (s)
3 12
7
13 42
Which of the statements about the farm's rate of expansion below are true? Select all that apply.
In month 7 the ant farm will be 21 square inches because the constant of proportionality is 3.
In month 7 the ant farm will be 28 square inches because the constant of proportionality is 4.
The constant of proportionality means that Kelly increases the ant farm by 4 square inches each month.
The constant of proportionality means that Kelly increases the ant farm by 15 square inches each month.
The equation s=4m can be used to find the size of the ant farm after any number of months.