Plz i need this by tomorrow what is bigger 16.45 or 16.454

Show algebraically that f and g are inverse functions f(x)=x^2/-6; g(x)=square root of 2x+12

The perimeter of a rectangle is greater than or equal to 74 meters. if the length is 25 meters, the minimum width of the rectangle is meters.

Janie has $3. she earns $1.20 for each chore she does and can do fractions of chores. she wants to earn enough money to buy a cd for $13.50. write an inequality to determine the number of chores, c, janie could do to have enough money to buy the cd.