Divide the price of 3 cans over 3 to find the unit rate:
[tex]\frac{1.98}{3}=0.66[/tex]Perform the same operation with the other rates to find which of them have the same unit rate:
6 cans for$4.00
[tex]\frac{4}{6}=0.67[/tex]5 cans for %5.90
[tex]\frac{5.90}{5}=1.18[/tex]2 cans for $1.32
[tex]\frac{1.32}{2}=0.66[/tex]4 cans for $3.60
[tex]\frac{3.60}{4}=0.9[/tex]Therefore, the only one which has the same rate as 3 cans for $1.98 is 2 cans for 1.32
