First, we need to calculate the total cost of the fifty cents stamps. Since Trisha bought x of them, the total cost of the fifty cents stamps would be 0.5x.
Next, we need to calculate the total cost of the thirty cents stamps. Since Trisha bought 3 of them, the total cost of the thirty cents stamps would be 0.3*3 = 0.9.
Finally, we add the total cost of the fifty cents stamps and the thirty cents stamps together to find the total amount Trisha spent on the stamps:
Total cost = 0.5x + 0.9
Therefore, Trisha spent 0.5x + 0.9 on the stamps.
Trisha bought x fifty cents stamps and 3 thirty cent stamps. How much did she spend altogether on the stamps
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