1. 

(17)3.5 x (17)? = 178

A. 2.29
B. 2.75
C. 4.25
D. 4.5

2. 

If 5a = 3125, then the value of 5(a - 3) is:

A. 25
B. 125
C. 625
D. 1625

3. 

If a x - 1 = b x - 3 , then the value of x is:
b a

A.
1
2
B. 1
C. 2
D.
7
2

4. 

If 3(x - y) = 27 and 3(x + y) = 243, then x is equal to:

A. 0
B. 2
C. 4
D. 6

5. 

Given that 100.48 = x, 100.70 = y and xz = y2, then the value of z is close to:

A. 1.45
B. 1.88
C. 2.9
D. 3.7