A system experiences an amount of work with a negative value. Which statement correctly interprets the significance of the negative sign

Plz i have no idea what a cover letter is can u guys explain it to me write a letter to the address below. you are responding to an advertisement from the willamette company for a job opening as an office assistant. you did some research and learned that the person to whom the application should be sent is ms. katrina n. d. waives. you are going to enclose a résumé and three letters of reference. your résumé will have details about your qualifications, so you should just give a brief but inviting overview of them here. in addition, your letter will include a very important paragraph that is not normally a part of a business letter. you will tell what format you are using for your letter where you got the information on this format. address of the willamette company: 355 buck hill road, portland, oregon 48792.

What is an example of a good stock to buy during economic expansion? a) cyclical stock b) defensive stock c) income stock d) bond

Alarge tank is filled to capacity with 500 gallons of pure water. brine containing 2 pounds of salt per gallon is pumped into the tank at a rate of 5 gal/min. the well-mixed solution is pumped out at the same rate. find the number a(t) of pounds of salt in the tank at time t.