Answer:
I don't understand your ques
Step-by-step explanation:
B: the relationship is proportional
Answer:
C. 5
Step-by-step explanation:
first expression 5 × (9-3) = 30
second one 45 - 3x
to make it 30 = 30
x should be = 5
You write it as a ratio eg. SF(large→small)=20:7
