Which of the following best characterizes the circular flow of income?
1. Businesses buy resources from the government, and households buy goods and services from businesses.
2. Businesses buy resources from households, and households use their income from the sale of resources to buy goods and services from businesses.
3. The government purchases resources from businesses and households and then sells goods and services to businesses and households.
4. Households buy factors of production from businesses, and businesses buy goods and services from households.

$527.7.if the following was the question  $527.7 is the answer.students who are trying to raise funds have an agreement with a local pizza chain. the chain has agreed to sell them pizzas at a discount, which the students can then resell to families in the local community for a profit. it is expected that of the 500 families in the community, at most 70% will buy pizza. based on a survey of their personal preferences, the students believe that they should order no more than 120 cheese pizzas, no more than 150 pepperoni pizzas, and no more than 100 vegetarian pizzas. they also want to make sure that at least 20% of the total pizzas are cheese and at least 50% of the pizzas are pepperoni. they make a profit of $1.45, $1.75, and $1.98, respectively, for each cheese, pepperoni, and vegetarian pizza they resell. how many pizzas of each type should they buy?