How are non excludable public goods paid for?

Asavings account that pays interest every 3 months is said to have a interest period

Penelope summers received certain income benefits in 2018. she received $1,400 of state unemployment insurance benefits, $2,000 from a federal unemployment trust fund and $3,700 workers’ compensation received for an occupational injury. what amount of the compensation must penelope include in her income

1. which one of the following would be an example of a supply-side market failure? a. a gas station is slowly leaking diesel fuel from its underground tanks, and after the leak is discovered, the business immediately cleans up the pollution at its own expense. b. a gas station is slowly leaking diesel fuel from its underground tanks, but the state uses taxpayer money to clean up the pollution rather than requiring the business to pay. c. your business wants to attract repeat customers by putting on a customer-appreciation picnic at a public park, but you decide not to because you couldn't prevent noncustomers from consuming the food and entertainment you provided. d. everyone rushes to the local retail outlet at midnight on the day of the release of a new video game console, and the store runs out before everyone is able to buy one.