I need help with these on my Homework, can someone please help me get the answers.

Which multiplicative property is being illustrated below? (type commutative, associative, or identity) 5 × 2 × 4 = 2 × 5 × 4

Asocial networking site currently has 400,000 active members, and that figure is predicted to increase by 32% each year. the following expression represents the number of active members on the site after t years.

Michael is training for a marathon. in his first week he plans to run 8miles. what path should he take