ashutoshpatelm

Points P, Q, R, and S are on a number line, as shown.

P = 3

Q = 5

R = 10

S = 17

The ratio of lengths P R : QS is:

(A) 7 : 12    (B) 10 : 17    (C) 1 : 1     (D) 5 : 12     (E) 7 : 17

The integers a, b and c satisfy the equations a + 5 = b and 5 + b = c and b + c = a.
The value of b is
(A) −30    (B) −20    (C) −10    (D) 0    (E) 5

The line with equation y = 2x+b passes through the point (−4, 0). The value of b is
(A) 1/2    (B) 1    (C) 2    (D) 4     (E) 8