scienceology Quiz
Question Number 1
( 2x + 5y - z ) - ( 2x + y - z )
A. 4x-y+7z
B. 4y
C. -4y
Question Number 2
66+66-66+66-66
A. 546
B. 66
C. 78
Question Number 3
what is ratio ?
A. comparison
B. division
C. none above-mentioned
Question Number 4
multiply 48 by 78?
A. 0987
B. 6668
C. 3744
Question Number 5
how is by percentage divided by ?
A. 1000
B. 100
C. 1200