Answer: 3n ×9
Step-by-step explanation:
The product of 3 times a N number equals 3n or 3 ×N but you should write 3n then times it by 9
X2 - 16, is the answer. The first one.
x^2 - 16 = (x)^2 - 4^2, difference of two squares :)
Answer:
Step-by-step explanation:
Volume = surface area of base * height

Answer:
100%-10%=90%
90%=36$ what about 10%=4$
36$+4$=40$