Elect two ratios that are equivalent to 6 : 10

What is the slope of the line passing through the points (-5, 7) and (-3,5)?

In a recent year, the weather was partly cloudy 2/5 of the days. assuming there are 356 days in a year, how many days were partly cloudy?

Acontainer full of water weighs 15.5 lbs. when ¼ of the water is poured out, the container now weighs 12 ½ lbs. how much does the container weigh when empty?