At a store, notebooks are on sale for 78% off the regular price. The cost of a notebook is represented by n. Which of the following expressions DOES represent the sale price
of the notebooks?

0.78n
n -0.22n
n - 0.78n
(1 - 0.22)n

C. n-0.78n

n−0.78n

=n+−0.78n

=n+−0.78n

=(n+−0.78n)

=0.22n

first, you divide the triangle in two, tô form a retangle triangle. after, using pythagoream theorem:

18^2 = 14^2 + (x/2)^2

(x^2/4) + 196 = 324

x^2/4 = 324 - 196

x^2/4 = 128

x^2 = 512

x = √512

x = √2^9

x = 16√2 cm

i hope i you.

after going and makeing graphs i would go with a,

there is nothing that is matches the graph. if there was i would show you. but therefore my answer is a.

hope i

-lavira: )