I need help :) please and thank u if u get it right i will give u brainlist :)

50 points! antonio made a scale model of a building. the model's scale is 1 inch to 235 feet and its height is 3.5 inches. what is the exact height of the actual building? enter your answer in the box.

Let r = 3. what is the value of r + 58?

For what value of x does 4x = (1/8) x + 5?