0.45 is bigger than 2/5. Hope this helps.
So we know that 20% off means that it has 80%, and I just need to take $3.5×80÷100=$2.8 for the new price. Additionally, another 10% off which means that 2.8×90÷100=$2.52 for the final price. Hope it help!
$4.08/16 ounces: $0.255
$4.50/18 ounces: $0.25
$5.39/22 ounces: $0.245
The best buy would be $4.50 for an 18-ounce box of cereal.
They belong to all of them, but Natural Number is the best option
