Answer:
72 lawns
Step-by-step explanation:
if the students could mow 12 lawns in 3 hours, then we can turn it into a ratio of 12:3, which we can simplify to 4:1.
to find how many lawns they can mow in 18 hours, we can multiply the numbers in our ratio by 18.
4x18=72
1x18=18
our new ratio is 72:18
we can translate this to:
they can mow 72 lawns in 18 hours
