Approximately how many human languages are there?

Joe, Margaret, and Denise are co-workers. Joe produces five widgets and is paid $5. Margaret produces twenty widgets and is paid $20. Denise produces fifty widgets and is paid $50. These workers are being paid according to a(n)________ pay plan.

Fill in the blank(s) with the appropriate word(s).

Mitchell is going for a walk on a nice day, and he catches a smell of some neighbours barbequing, and he immediately is reminded of a vivid memory of when his own family used to go to the park and have a barbeque. This is an example of:

a) Bottom-up processing b) Top-down processing c) Sideways processing d) Parallel processing