Given:
In a right triangle at B,

To find:
The length of the sides b and c and angle B.
Explanation:
Using the trigonometric ratio,

Using the trigonometric ratio,

Using the angle sum property,
The angle B becomes,

Final answer:
The values are,
See attached for the solution
10 * 6 = 60 by the time Zach joins so 125-60 = 65
Now 6 (lexie) +7 (zach) = 13 (together) and 65/13 = 5.
6*5 = 30 and 7*5 = 35. 35+30 = 65
Your answer is 5.