The answer is the first choice.
Answer:
If the ratio of one variable to the other is constant, then the two variables have a proportional relationship,
If x and y have a proportional relationship, the constant of proportionality is the ratio of y to x.
In this section, you will learn, how to find the constant of proportionality from a table which contains the values of x and y.
Step-by-step explanation:
I hope that helps, I'm so sorry if it doesn't
Is is the first one. 1600=.45x
U're goal is to get k alone.
So divide both sides by 9/10.
3/2 divided by 9/10 is 5/3
$18. You get this because you subtract 7 from 16 since that’s money he got. You get 9. Since Jack spent half his allowance money, you double the money he had left after spending it, giving you $18.
