Grant took $27.75 to the movies last friday. each ticket costs g dollars. write an expression to represent the amount of money grant had after he bought 3 tickets.

To represent how much money Grant will have remaining after he buys 3 tickets, you would think of subtracting g, the price of one ticket 3 times. This could be represented by subtracting groups of g as well.

27.75 - g - g - g or $27.75 - 3g