A possible answer is

.
Pi is an irrational number and when you multiply a rational number with an irrational number, you end up with an irrational number.
Answer:
$5
Step-by-step explanation:
Because everyone want to be rich!
Answer: I believe it is D..
Answer and Explanation:
To find : Which number is in standard notation or scientific notation?
Solution :
Scientific notation is a special ways of writing the standard form of number.
Scientific notation make a big number into smaller way bye writing it into 10 to the power or using E.
Standard notation is like 12,47950585,89000.
Scientific notation is like
, 
So, Now we examine the numbers,
A)
is the Scientific notation.
B)
is the Standard notation.
C)
is the Scientific notation.
D)
is the Standard notation.
Complementary angles
26
54
48
39
22
supplementary angles
54
48
2
135
91