Which of the following sentences is correctly punctuated?

I don’t know when the vendor will visit again, and we need more supplies for the office.
I don’t know when the vendor will visit again and we need more supplies for the office.
I don’t know when the vendor will visit again and, we need more supplies for the office.

Presented below is information for annie company for the month of march 2018. cost of goods sold $245,000 rent expense $ 36,000 freight-out 7,000 sales discounts 8,000 insurance expense 5,000 sales returns and allowances 11,000 salaries and wages expense 63,000 sales revenue 410,000 instructions prepare the income statement.

How has apple been able to sustain its competitive advantage in the smartphone industry? a. by reducing its network effects b. by targeting its new products and services toward laggards c. by driving the price for the end user to zero d. by regularly introducing incremental improvements in its products

Q3. loral corporation manufactures parts for an aircraft company. it uses a computerized numerical controlled (cnc) machining center to produce a specific part that has a design (nominal) target of 1.275 inches with tolerances of ± 0.020 inch. the cnc process that manufactures these parts has a mean of 1.285 inches and a standard deviation of 0.005 inch. compute the process capability ratio and process capability index, and comment on the overall capability of the process to meet the design specifications.