8.7 you need to do the Pythagorean theorem
You were given one side length and the hypotenuse so your equation should b 18^2+x^2=20^2
Answer:
b 12 hats for $48
Step-by-step explanation:
Ok, 6×25=150, since there are 6 sides, the answer is 150cm.
Its easy just subtract so example subtract 480 - ____ just keep adding a number until it tells you the awnser
I have memorized facts about fractions like these, so can tell you ...

_____
A fraction with 9 as a denominator is a repeating 1-digit decimal with the decimal digit being the numerator of the fraction.
A fraction with 11 as a denominator is a repeating 2-digit decimal with the two digits being 9 times the numerator of the fraction.
1/8 = 0.125, so any multiple of 1/8 is that multiple of 0.125.