please answer 1 and 2 thank you

Table 1 shows the data of expected benefits and cost for recreation activities on a determined reservoir. Using the data provided in Table 1, on possible recreation benefits, cost (recreation losses). 1) Estimate the Net Benefits I Summer storage level Table 1.- Data of associated benefits and cost for the Probability Decrease in of storage Average recreation level Benefits benefits (Cost) Net Benefits (thousand S) (thousands) (thousand S) 0.1 10 5 0.2 10 2 0.4 10 0 0.2 10 1 10 4 200 250 300 350 400 0.1 2) Estimate the Expected Net Benefits