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1. 
Simplify: 3 + 6 x (7^2 + 14) - 7
A.
381
B.
374
C.
300
D.
350
2. 
Simplify 4x(x-7) - 2x(x-5)
A.
-6x^2 + 18x
B.
-2x^2 + 18x
C.
6x^2 - 18x
D.
2x^2 - 18x
3. 
Simplify -16x + 20
A.
4(-4x + 5)
B.
4x(4x + 5)
C.
-4(x + 5)
D.
-4x(4x+5)
4. 
Evaluate 2r^2 - 11, r=3
A.
1
B.
3
C.
5
D.
7
5. 
Simplify x^-5
A.
x^5
B.
1 / x^-5
C.
1 / x^5
D.
x^-5