please help i’m so confused ;(

Answer:
5.4
Step-by-step explanation:
simply subtract 8.4 from 3
8.4-3=5.4
pls give brainliest
Answer:
x is D 4.5
Step-by-step explanation:
you do 12.6 divide by 8.4 its 1.5 then you do 1.5 times 3 =4.5 or d sum it up x=4.5