_____ exchanges are open to any set of buyers and sellers within a given market and provide services and a common technology platform to their members.

Which type of printer has tiny nozzles used to spray ink onto paper?

A) Laser B) Bubble jet C) Dot-matrix D) All these printer types have this feature.

Which of the following input formatting statements would read the following data?  23 z 4.1

A. scanf("%d%c%f", i, c, f); B. scanf("%i%c%f", i, c, f); C. scanf("%d%c%f", &i, &c, &f); D. scanf("%d %c%f", &i, &c, &f); E. scanf("%d %c %x", &i, &c, &f);