In a science experiment, the temperature of a substance is changed from 5 °F to -91°F at an average rate of -12 degrees per hour. Over how many hours does the change take place?*​

Ben is three times as old as samantha, who is two years older than half of michel's age. if michel is 12. how old is ben?

In the following diagram it is given that dec, ab || dc, ad || eb, and ad is congruent to bc. a)why isn't abc a parallelogram even though it has a pair of parallel sides and a pair of congruent sides b)explain why be must be congruent to bc. further explain what type of triangle this makes triangle abc and what it tells you about angle 1 and angle 2c) finally why must angle 3 be congruent to angle 1? further, explain why we know that angle 3 is congruent to angle 2

What is the range? can’t seem to find it out