Please, Just please help me

Write the sine and cosine values of a, b, respectively, in the figure for (1) and (2) + explanation.

Someone which statements are true? check all that apply.

At a local museum, the total price for one adult and one child is $11. mrs. smith paid for herself and her three children. she spent $19. record the system of equations to be solved and then find the price of an adult and child ticket using either elimination or substitution.