Answer:
$0.24
Step-by-step explanation:
Given:
At full price, Melvin would pay for per liter of gasoline = $1.679
Using his loyalty card, Melvin only pays = $1.439
Question asked:
How much less does Melvin pay per liter using his loyalty card?
Solution:
At full price, Melvin would pay for per liter of gasoline = $1.679
Using his loyalty card, Melvin only pays = $1.439
To find that that how much less amount Melvin pay for per liter of gasoline using his loyalty card, we will subtract the payment using loyalty card from payment without using loyalty card.
$1.679 - $1.439 = $0.24
Therefore, $0.24 less amount Melvin pay for per liter of gasoline using his loyalty card.
. The first term reduces to 
, the second to 
, and the third to 3. Putting them all together with the signs in between we have 