18) store a: $25 for a 45 minute lesson store b: $30 for a 1 hour lesson store c: $45 for a 1.5 hour lesson store d: $80 for three 1 hour lessons julie wants to purchase swim lessons for her son. there are four different stores that offer swim lessons. based on the lowest cost per minute, which store has the best deal? a) store a b) store b c) store c d) store d

Store D has the best deal

Step-by-step explanation:

We will divide cost per minutes

Store A: $25 for a 45 minute lesson

$25/45 minutes

$.5555555  per minute

Store B: $30 for a 1 hour lesson

1 hour = 60 minutes

$30/60  

$.5 per minute

Store C: $45 for a 1.5 hour lesson

1.5 hours* 60 minutes/ hour = 90 minutes

$45/ 90

$.5 per minute  

Store D: $80 for three 1 hour lessons

3 * 1 hour = 3 hours

3 hours * 60 minutes/ 1 hour = 180 minutes

$80/ 180 =

$.4444 per minute