The variables x
x
and y
y
vary directly. use the values to find the constant of proportionality, k
k
. then write an equation that relates x

x
and y
y
.

y=72; x=3

k=?
y=?

Acar travels at an average speed of 56 miles per hour. how long does it take to travel 196 miles

Liz is shipping a package to her friend. the maximum weight of a medium flat-rate box is 20 pounds, including the box which weighs 6 ounces. write and solve an inequality to describe the possible weight in pounds, w, of the contents that liz will ship to her friend if she must use a medium flat-rate box. use the drop-down menus to explain your answer.

Which diagram shows lines that must be parallel lines cut by transversal?