Product bundling refers to: a. a package of unrelated products. b. a method of stocking products efficiently. c. a complete package of related products. d. preparation of products for shipment. e. an inventory procedure for ensuring effective counting of products.

Product bundling refers to: a complete package of related products.
Correct C
It is a marketing strategy in which multiple products or components are packaged together into one bundled solution and are sold that way.  Product bundling is common in telecommunications services, financial services, health care...

The answer is -2.

You put the 4 in for the x and solve.

4 x 2 = 8

8 - 10 = -2