Marsha is 23 years old and single. She cannot be claimed as a dependent by another taxpayer. Marsha earned wages of $18,500 and had $1,500 of federal income tax withholding in tax year 2020. Marsha gave birth to Shelby on November 10, 2020. Marsha paid all the cost of keeping up a home and support for Shelby. Shelby and Marsha are U. S. citizens and have valid Social Security numbers. Marsha filed Single with no dependents on her 2019 tax return and received a $1,200 Economic Impact Payment in May 2020. 3. Marsha is not required to file a return, but should file a return to claim a refund of her federal income tax withholding. True False

At a student café, there are equal numbers of two types of customers with the following values. the café owner cannot distinguish between the two types of students because many students without early classes arrive early anyway (i.e., she cannot price-discriminate). students with early classes students without early classes coffee 70 60 banana 51 101 the marginal cost of coffee is 10 and the marginal cost of a banana is 40. the café owner is considering three pricing strategies: 1. mixed bundling: price bundle of coffee and a banana for 161, or just a coffee for 70. 2. price separately: offer coffee at 60, price a banana at 101. 3. bundle only: coffee and a banana for 121. do not offer goods separately. assume that if the price of an item or bundle is no more than exactly equal to a student's willingness to pay, then the student will purchase the item or bundle. for simplicity, assume there is just one student with an early class, and one student without an early class. price strategy revenue from pricing strategy cost from pricing strategy profit from pricing strategy 1. mixed bundling $ $ $ 2. price separately $ $ $ 3. bundle only $ $ $ pricing strategy yields the highest profit for the café owner.

David consumes two things: gasoline (q 1) and bread (q 2). david's utility function is u(q 1, q 2)equals70q 1 superscript 0.5 baseline q 2 superscript 0.5. let the price of gasoline be p 1, the price of bread be p 2, and income be y. derive david's demand curve for gasoline. david's demand for gasoline is q 1equals nothing. (properly format your expression using the tools in the palette. hover over tools to see keyboard shortcuts. e.g., a subscript can be created with the _ character.)

Where are subduction zones most likely to form