What's the function notation for this? And which one is the independent and dependent variable?

  f(x) = 0.30x + 2.50

This is the same as writing y = 0.30x + 2.50

Explanation:

x = number of pounds

y = f(x) = total cost in dollars

1 pound costs $0.30

x pounds cost 0.30x

This is ignoring the entrance fee

Tacking on the entrance fee leads to a total of y = 0.30x + 2.50

The independent variable is always x and the dependent variable is always y.

The independent variable (number of pounds) determines what the dependent variable (total cost) will be.

answer: if you weigh 60 pounds on earth, on the moon you will weigh about 10 pounds. if you weigh 120 pounds on earth, you will weigh about 20 pounds on the moon. since weight is caused by the mass of two objects that are near each other, the bigger the objects, the more the force of gravity.

step-by-step explanation: if you weigh 60 pounds on earth, on the moon you will weigh about 10 pounds. if you weigh 120 pounds on earth, you will weigh about 20 pounds on the moon. since weight is caused by the mass of two objects that are near each other, the bigger the objects, the more the force of gravity.