Answer:
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