hi plzzzzzzz help this is important so
Dance lessons are $100 per couple half hour.Assume a couples want to take dance lessons for a hour.Use mental math to find out the total cost of the dance lesson for the couples.

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Answer:

If a couple wants to do one hour, it would be $20.

Step-by-step explanation:

Since it is $100 for half an hour, you would multiply the cost by 2 to get the cost for one hour