Acar dealership offers two choices of discount on a card with the sticker price of 25,000 toys eight 4000 rebate

An advertisement is on a flyer that has a thickness of 8.2 × 10-5 meters. each measurement below is the thickness of a stack of flyers. drag each measurement to the correct stack.

If you could answer these your a life saver

Given the two similar triangles, how do i find the missing length? if a=4, b=5, and b'=7.5 find a'