Based on the equation Y = 4.29 + 143.3x, Sales(Y) is in Units of $1000.00 and Advertising(X) is in Units of $100. What are Sales when $3,391.00 is spent on advertising? Submit Answer format: Currency: Round to: 2 decimal places. Sales(Y) is in Units of $10,000.00 and Advertising(X) is in Units of $1000. If we want to calculate the value of sales when $35,747.00 is spent on advertising. What do we use for X in the following equation? Y-42.9+143.3X . Submit Answer format: Currency: Round to: 2 decimal places