]Yasmin is training for a marathon, and each month she increases her running distance. During her 4 months of training, her distances were 1, 5, 9, and thirteen miles. What is the rule the sequence follows?

Add 4 miles to the previous number.

Divide the previous number by 5.

Multiply the previous number by 5.

Subtract 4 miles from the previous number.

Question

]Yasmin is training for a marathon, and each month she increases her running distance. During her 4 months of training, her distances were 1, 5, 9, and thirteen miles. What is the rule the sequence follows?

Add 4 miles to the previous number.

Divide the previous number by 5.

Multiply the previous number by 5.

Subtract 4 miles from the previous number.

anonymous · Answer

"Add 4 miles to the previous number" works if you know the previous number.

4m -3 works if you know the month ordinal only.  Yasmin would have run 21 miles on the 6th month.