Question

Dara bought a notebooks for $2.50 each and b pencils for $0.25 each. Which expression best shows how much she spent?

Answer 1

Since she bought a notebooks for $2.50 each, the total she spent on them is equal to quantity times price, or $2.50a.

Same goes for pencils, the total she spent is quantity times price, or $.25b.

So the total is $2.50a + $.25b