Kelsey jarred 8 liters of jam after 2 days. How many days does Kelsey need to spend making jam if she wants to jar 28 liters of jam in all? Solve using unit rates.

Answer 1

On the first day, Kelsey made 8/2 = <<8/2=4>>4 liters of jam.
So, in 1 day, Kelsey can jar 4 liters of jam.
Therefore, Kelsey needs to spend 28/4 = <<28/4=7>>7 days to make 28 liters of jam. Answer: \boxed{7}.