Please, find attached the image with the complete question
Answer:

Explanation:
The triangle ACB is a right triangle with these features:
- x represents the opposite side to the angle g
- y represents the adjacent side to the angle g
The <em>tangent ratio </em>on an angle in a right triangle is equal to the length of the leg opposite to the angle divided by the length of the leg adjacent to the angle.
Hence:

Subtract 7.50 - 4.00 and dived that answer by 10