40 seconds to 3 minutes | 3 dollars to 65 cents

Ratios simplified

2 : 9, 60 : 13

Step-by-step explanation:

We know:

1min = 60s → 3min = (3) (60s) = 180s

40s : 3min = 40s : 180s = (40/20) : (180/20) = 2 : 9

$1 = ¢100 → $3 = (3) (¢100) = ¢300

$3 : ¢65 = ¢300 : ¢65 = (300/5) : (65/5) = 60 : 13