What is the algebraic expression for
"the product of nine and a
number"?

Find an equation of the line perpendicular to the graph.

Emma will roll two number cubes labeled 1 through 6. she will record the sum of the two numbers after each roll. she will roll the two cubes 540 times. how many times should emma expect the sum to equal 5?

2y= 3 2 x−2 y = − 1 3 x + 1 y=− 3 1 x+1