Nalani is designing dresses for her school's dance recital. She is creating 9
identical dresses. She knows that she
needs to add 4 inches of lace to the end
of each dress. She has a total of 121 in of
lace to use. Write an equation involving
distributive property that would help
Nalani figure out how many additional
inches, n, of lace she can add to the
dresses. Demonstrate using a model,
as well.

check the picture below.

well, the angle at the vertex d is clearly not a right-angle, let's check for the one at the vertex f which does look like,   however if it's indeed, that means ef is perpendicular to df, in which case their slopes will be negative reciprocal of each other.

so the negative reciprocal of the slope of ef is 1, however the slope of df is not 1, is 1/2, so nope, they're not perpendicular lines.

look at photo

is there supposed to be a diagram or a graph for this one? ?

step-by-step explanation: