Four minus the product of one and a number xxx

Polynomial that can be factored as (3x-4)(3x+4)

What is the missing statement in step 4? ? rts ? ? vtu and ? rtu ? ? vts ? rts ? ? rvs and ? rtu ? ? stv ? vrs ? ? vru and ? usr ? ? usv ? vur ? ? vus and ? uvs ? ? sru

Reinel saves 30% of every pay check. his paycheck last week was 560$. how much did reniel save last week?