You are buying balloons for a party. A small balloon costs ​$2. A large balloon costs ​$4. Write an algebraic expression for the cost of x small balloons and y large balloons. Then find the total cost for 10 small balloons and 5 large balloons.

An algebraic expression for the cost of x small balloons and y large balloons is

what.

The total cost for 10 small balloons and 5 large balloons is ​$

what.

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