Using digits 0 - 9, how many four-digit locker combinations can be made if no digits can be repeated?
a. 1,000
b. 5,040
c. 9,999
d. 10,000
b. 5,040
Mathematics
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Write the percent as a simplified fraction or mixed number.0.2%
A. 
B. 
C. 
D. 
Mathematics
Use the properties of summation notation to find the sum.
A. - 196 B. - 231 C. - 147 D. 259
Mathematics
Multiply.0.0404 × 4.04
A. 0.173216 B. 0.18776 C. 0.17776 D. 0.163216
Mathematics
Expand.(x - 
)5
A. x5 - 5x4
+ 70x3 - 70x2
+ 245x - 49
B. x5 - 5x4
+ 70x3 - 70x2
+ 245x - 49
C. x5 - 5x4
+ 70x3 - 70x2
+ 49x - 49
D. x5 - 5x4
+ 7x3 - 70x2
+ 245x - 49
Mathematics