What is the direct linear variation equation for the relationship?

y varies directly with x and y=4 when x=12

a. y= x

b. y=3x

c. y=x+8

d. y=x-8

You serve 3 1/4 gallons of punch at a party. your friends drink 1 1 /2 gallons of the punch. which of these containers is the smallest you can use to store the remaining punch?

Awindow washer cleans 42 windows in 2 hours. at this rate, how many windows did he clean in 180 minutes.

You just purchased two coins at a price of $670 each. because one of the coins is more collectible, you believe that its value will increase at a rate of 7.1 percent per year, while you believe the second coin will only increase at 6.5 percent per year. if you are correct, how much more will the first coin be worth in 15 years?