Identify the option that is less expensive, based on the unit rate: option A: 2.2 kg of jam for $5.00 option B: 1.4 of jam for $5.20.
To determine the option that is less expensive, we need to compare the unit rate of the two options.
Option A: 2.2 kg for $5.00
Unit rate = $5.00/2.2 kg = $2.27/kg
Option B: 1.4 kg for $5.20
Unit rate = $5.20/1.4 kg = $3.71/kg
Comparing the unit rates, we can see that option A has a lower unit rate ($2.27/kg) compared to option B ($3.71/kg).
Therefore, option A is less expensive.