They have $355 to spend.
Curtain Cost: 34.50 * 3 = 103.50
Bedspread Cost: 29.95 * 3 = 77.85
Gallon of paint Cost: 14.96 * 3 = 44.88
Lamp Shade Cost: 19.99 * 3 = 59.97
Add all those together to get the final cost.
103.50 + 77.85 + 44.88 + 59.97 = 286.20
They spend a total of $286.50
Subtract that from 355
355 - 286.50 = 68.50
They have $68.50 left over.