Answer:
7x-9
Step-by-step explanation:
The number is 20. Work in picture if you want it or want justification of steps:)
Answer:
27.7
Step-by-step explanation:
90 - 62.3 = 27.7
I believe this is a problem dealing with proportions, so you could cross multiply and divide. so you would do 8/270 then x/72.5 , you cross multiply 72.5x8 which equals 580. then you divide that answer by 100 which equals 5.8 (: