The temperature of the pool water was 83 degrees during the day and dropped 7 degrees at night. What was the new temperature.

Is a positive integer raised to a negative power always positive

Seymour is twice as old as cassandra. if 16 is added to cassandra’s age and 16 is subtracted from seymour’s age, their ages become equal. what are their present ages? show !

The graph of f(x) = |x| is transformed to g(x) = |x + 11| - 7. on which interval is the function decreasing?