Final answer:
Washington generates revenue through sales and property taxes, budgeted $6 billion for transportation, $4 billion for Human Services, and the largest budget portion is for education in 2013-2015.
Step-by-step explanation:
Washington’s state government collects sales and property taxes to generate revenue. According to the graph, the state budgeted about $6 billion for transportation in 2013-2015. According to the graph, the state budgeted about $4 billion for Human Services expenses in 2013-2015. Based on the graph, the majority of Washington’s budget is for education costs, which includes both public schools and higher education.