PLEASE HELP ASAP IM LITERALY DUM A 3-column table has 7 rows. The first column is labeled Bikes produced per day with entries 1, 2, 3, 4, 5, 6, 7. The second column is labeled total cost with entries 80, 97, 110, 130, 160, 210, and 270. The third column is labeled Marginal cost with all blank entries.
Using this table, calculate the marginal cost of each of these quantities of bikes.

The first bike: $_

The fourth bike: $_

The sixth bike: $_

The seventh bike: $_

Portia grant is an employee who is paid monthly. for the month of january of the current year, she earned a total of $8,388. the fica tax for social security is 6.2% of the first $118,500 earned each calendar year and the fica tax rate for medicare is 1.45% of all earnings. the futa tax rate of 0.6% and the suta tax rate of 5.4% are applied to the first $7,000 of an employee's pay. the amount of federal income tax withheld from her earnings was $1,391.77. what is the total amount of taxes withheld from the portia's earnings?

Why would an investor invest in your stocks

Bcorporation, a merchandising company, reported the following results for october: sales $ 490,000 cost of goods sold (all variable) $ 169,700 total variable selling expense $ 24,200 total fixed selling expense $ 21,700 total variable administrative expense $ 13,200 total fixed administrative expense $ 33,600 the contribution margin for october is: