Mallory is partway through a cross-country driving trip, and before she began, she budgeted $400 for gas. She wants to know how much money she has left in her gas budget for the trip. Help Mallory calculate the answer.

 Calculate

Part I: So far Mallory has driven 9 hours each day for 3 days. What is the total number of hours she has driven on the trip so far?

Part II: Mallory's average speed so far has been 55 miles per hour. What is the total number of miles she has driven on the trip so far?

Part III: Mallory's gas mileage so far has been 30 mpg. What is the total number of gallons of gas she has used on the trip so far?

Part IV: On average, Mallory has paid $2.90 per gallon of gas so far. How much in total has she spent on gas on the trip so far?

Part V: How much money does Mallory have left in her gas budget for the trip?