Answer:
x = 15
Step-by-step explanation:
Similar triangles and proportional side lengths.
10/4 = x/6
5/2 = x/6
2x = 5 * 6
2x = 30
Answer: a
15.00x13.00=195
3x15.00=45.00
15x10.00=150.00
150.00+45.00=195.00