Solving proportions is simply a matter of stating the ratios as fractions, setting the two fractions equal to each other, cross-multiplying, and solving the resulting equation. You'll probably start out by just solving proportions, like this: Find the unknown value in the proportion: 2 : x = 3 : 9.
Answer:

Step-by-step explanation:
Answer:
y=5x is not linear
Step-by-step explanation:
option A is not linear
Answer:
353535
/1000000 equals to 70707/200000
Step-by-step explanation: