Could I please get help on the following questions?

1. College tuition has risen significantly in the last few decades. For the sake of this problem, let's assume that over the last 20 years the cost of college, including total tuition, room, and board paid by full-time undergraduate students went from $2,871 to $16,789 at public institutions, a 485% price increase, and from $6,330 to $33,716 at private institutions, a 433% increase. Over the same time, average personal income after taxes rose from $9,785 to $39,409 per year, an increase of 302%. Have these tuition increases made it more difficult for the average student to afford college tuition? Explain/show.4. The small economy of Pizza nia produces three goods (bread, cheese, and pizza), each produced by a separate company. The bread and cheese companies produce all the inputs they need to make bread and cheese, respectively. The pizza company uses the bread and cheese from the other companies to make its pizzas. All three companies employ labor to help produce their goods, and the difference between the value of goods sold and the sum of labor and input costs is the finn's profit. The accompanying table summarizes the activities of the three companies when all the bread and cheese produced are sold to the pizza company as inputs in the production of pizzas. Bread Cheese Pizza company company company Cost of inputs $0 $0 $50 (bread) 35 (cheese) Wages Value of output a. Calculate GDP as the value added in production. b. Calculate GDP as spending on nal goods and services. c. Calculate GDP as factor income