Jessica's collectible car is currently worth $20,430 but is increasing in value at a rate of 12.5% every year.

I'll give the yearly increase (5107.5) I'll also throw in the amount of money after a year 25,537.5.

Step-by-step explanation:

20,430 *1.25 (the decimal form of 12.5 percent) is your increase per year is 5107.5 of which is 12.5 percent of 20,430. Once you multiply by your percent you subtract the beginning value by your answer. This is because she would not be gaining more than twenty thousand dollars per year, that's just silly.

the ratio of balloons to tables is 5: 2 and the constant variation is 5.

the equation is y=5x

y=3x+4

step-by-step explanation:

given the points a(0,4) and b(-4, -8)

eqn of line ab: (y-4)/(x-0)=(-8-4)/(-4-0)

(y-4)/x=-12/-4=3

y=3x+4