100 POINTS!! and brainiest! Which of these sets of coordinates are proportional?
A. (3, 1), (6, 2), (9, 3)
B. (2, 4), (4, 6), (7, 9)
C. (1.5, 3), (3, 6), (4, 8)
D. (3, 1), (4, 3), (8, 6)

Divide x by Y for each set if they all have the same value they are proportional:

A: 3/1 = 3, 6/2 = 3, 9/3 = 3 This is proportional.

B: 2/4 = 1/2, 4/6 = 2/3, 7/9 = 7/9, Not proportional.

C: 1.5/3 = 1/2, 3/6 = 1/2, 4/8 = 1/2 This is proportional.

D: 3/1 = 3, 4/3 = 1 1/3, 8/6 = 1 1/3, Not proportional.

The answers are A and C are proportional.

78.59 is the mean

step-by-step explanation:

62.5 paisa

step-by-step explanation:

4000*70 = 280000

280000-(2000*90) = 100000

4000-2400 = 1600

100000/1600 = 62.5

( give brainliest)