Choose yes or no to tell whether the expression represents a 20% discount off the price of an item the originally cost d dollars 0.8d

d-0.2

d-0.2d

1-0.2d

depending on others is critical to survival. my source is apex!

step-by-step explanation:

the answer is 62.8 cubic units

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.