Can you please fill the blanks in the picture only

4. Government spending in Robok is $140 billion, and its only tax is an income tax with a marginal tax rate of 0.2. a. The balance on the government's budget at a GDP level of $450 billion is a (Click to select) of $ billion. b. The balance on the government's budget at a GDP level of $800 billion is a (Click to select) of $ billion. c. At what level of GDP will the economy of Robok have a balanced budget? Robok will have a balanced budget at a GDP level of $ billion