I need help i dont get it?

The weight of an object in the water is 7% of its weight out of the water. what is the weight of a 652g object in the water?

You are at a restaurant and owe $38 for your meal. you want to leave a 20% tip. how much will your tip be?

A. plot the data for the functions f(x) and g(x) on a grid and connect the points. x -2 -1 0 1 2 f(x) 1/9 1/3 1 3 9 x -2 -1 0 1 2 g(x) -4 -2 0 2 4 b. which function could be described as exponential and which as linear? explain. c. if the functions continue with the same pattern, will the function values ever be equal? if so, give estimates for the value of x that will make the function values equals. if not, explain why the function values will never be equal.