Please help with number 1 and 2.ty

1)Dick is deciding whether or not to open a lemonade stand. He expects to sell 20 cups of lemonade for $1 per cup. He already made a sign that cost her $10 and will have $15 worth of additional costs for cups and lemonade mix if he decides to open the stand.

a.If Dick decides to open the lemonade stand, how much profit will he earn?

$

b.Based on this information, Dickshould/should notopen the lemonade stand.

c.The $10 spent on the sign represents asunk/labor/lostecessary cost.

2)

Jade has midterms in economics and astronomy tomorrow and only has four hours left to study. The accompanying table provides the combinations of time spent studying economics and astronomy and her expected exam scores. Hours Spent Economics Hours Spent Astronomy Studying Exam Studying Exam Economics Score Astronomy Score 0 60 0 70 1 80 1 83 2 90 2 87 3 95 3 90 4 98 4 92 a. Use the graph to plot the production possibilities frontier for J ade's study options. A B C D Point improvement to your economics score E 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 Point improvement to your astronomy score b. Suppose Jade spends the first two hours studying economics. The opportunity cost of spending the third hour studying economics is 5 - points on her economics exam.c. Suppose Jade's goal is to maximize her combined exam scores. Calculate how many hours she should spend studying economics and how many hours she should spend studying astronomy. Jade should spend 1 - hours studying economics and 3 - hours studying astronomy. d. Suppose Jade's laptop dies and refuses to start up. All her notes and class materials (for both classes) are saved on its hard drive. Jade's production possibilities curve will shift to the left , because studying becomes more difficult