The poster shows a carnation sale at a supermarket. Andy needs to get at least 13 carnations for a party. What is the smallest amount of money he will have to pay?
Number of carnations in a set
= 2 + 1
= 3
Number of sets in 13 carnations
= 13 ÷ 3
= 4 r 1
Number of sets needed
= 4 + 1
= 5
Smalllest amount that he will have to pay
= 5 x 1.50
= $7.50
Answer(s): $7.50