Help please ​

Me find the measure to side a and the process to solve the problem you appreciate it : )

Determine whether the angles in each given pair are coterminal. 744°, -336°

Karen is financing $291,875 to purchase a house. she obtained a 15/5 balloon mortgage at 5.35%. what will her balloon payment be? a. $220,089.34 b. $219,112.46 c. $246,181.39 d. $230,834.98