You recently got a job as an usher at the nearby movie theater. Last night, you had the opportunity to work but decided to take your very first vacation day. Suppose you could have earned $8 per hour for three hours of work. Instead, you went to a movie yourself, where you spent $15 on a ticket and popcorn. Your opportunity cost to see the movie was .

Can someone answer these problems for me

Select the correct answer. what is the exact value of sin (157.5°)? a. 'sqrt(2 - sqrt(2))/2 b. *"-"'sqrt(2 + sqrt(2))/29 c.'sqrt(2 + sqrt(2))/4" d. "-"sqrt(2 + sqrt(2))/4)

Even if a person is in very good shape, applying to be a police officer requires commitment to fitness. applicants must pass a physical fitness test. in order to prepare for the test, janet purchases an activity tracker to court her steps. her goal is to walk 10,000 steps each day. she measures heard average step length to be 30 inches. play janet runs, her average steps length increases to 36 in. how many steps would she have to take to run 1 mile 50280 round to the nearest step