Please help me with this.

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

Dylan and dusty plan to take weekly surfing lessons together. if the 2-hour lessons are $20 per person and they plan to spend $100 each on new surfboards, what is the maximum number of lessons the two can take if the total amount spent for lessons and surfboards is at most $480?

Negative 5 1/12 + negative 4 1/4 + 6 3/4