Answer:
and 
Step-by-step explanation:
If a number 'x' is a perfect square, then
is rational.
25, 36 and 81 are perfect squares, but 54 and 120 aren't, so the irrational values are
and 
It works because even if the numbers are broken apart, you are still multiplying the numbers by their values, it's only different because once broken apart, it's in expanded form instead of standard form. It also makes multiplication easier since you don't have to deal with such large numbers.
Answer:
p > 2
Step-by-step explanation:
X+y=27
x=2y
2y+y=27
y=9
x=27-y
x=27-9=18
Answer:
if you need help with problems like that I suggest algebra calculator or math away