Posted by tea on .
Determine if the given rates are equivalent.
9in/57 miles = 6 in/38 miles

basic math 
Ms. Sue,
If 9 inches = 57 miles, then 1 inch equals 6 1/3 miles.
If 6 inches = 38 miles, then 1 inch equals 6 1/3 miles. 
basic math 
john,
Find the best buy on Shampoo:
4oz for 1.16
7 oz for 1.52
15 oz for 3.39 
basic math John 
PsyDAG,
First, if you have a question, it is much better to put it in as a separate post in <Post a New Question> rather than attaching it to a previous question, where it is more likely to be overlooked.
See your later post.