D has the commutative property because it just flip flopped the numbers.
Answer:
-1.5
Step-by-step explanation:
Answer:
For one adult it costs $15
For one child it costs $10
Step-by-step explanation:
So..
One adult = $15
Two children = $20 10×10
= $35
Then..
Two adult = $30 15×15
Three children = $30 10×10×10
= $60
Plz mark brainliest thanks