Solylin, a company that manufactures electronic goods, has introduced solar chargers that are compatible with all brands and models of cell phones in the market. These chargers help save costs because they work on solar power, and they are sold at a lower price than traditional chargers. In the context of innovation streams, which of the following does this scenario best illustrate?
A) Change intervention
B) Unfreezing
C) Incremental change
D) Refreezing

Arival company manufactures fuel tanks for cars using a different production technique. the total weekly cost (in dollars) of producing x tanks is given by c(x) = 10000 +90x - 0.04x2 find the marginal cost at a production level of 500 fuel tanks per week to approximate the cost of the 501st unit (round to the nearest 2 decimal places, if needed)

Connors academy reported inventory in the 2017 year-end balance sheet, using the fifo method, as $154,000. in 2018, the company decided to change its inventory method to lifo. if the company had used the lifo method in 2017, the company estimates that ending inventory would have been in the range $130,000-$135,000. what adjustment would connors make for this change in inventory method?

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?