How to solve these, what do i solve first? or do i input the numbers in the place of x?

One of the inventors of integrated circuits observed that the number of transistors that fit on an integrated circuit will double every 24 months. what type of relationship most appropriately models this situation?

Consider the proof. given: segment ab is parallel to line de. prove: what is the missing statement in step 5?

Danielle earns a 7.25% commission on everything she sells at the electronics store where she works. she also earns a base salary of $750 per week. what were her sales last week if her total earnings for the week were $1,076.25?