Answer:
Step-by-step explanation:
(pk) * r = p * (kr)
Homework help, vice versa. have fun!
Answer:
0
Step-by-step explanation:
Hello, dividing by 0 is not defined. so

is defined for x different from 0
This being said, we can simplify by 2x

and this last expression is defined for any real number x.
Thank you
Answer:
True, because they are under 180 degrees
"Supplementary angles are two angles with a sum of 18 0 ∘ 180 ^\circ 180∘ . A common case is when they lie on the same side of a straight line."
Answer:
no
Step-by-step explanation:
5 books are $2.50, mean that 10 books should only be $4.00 not $4.50. Also making the 15 for $6.00 only $5.50. All because 5 books would be $2.50.