A little help? we're supposed to find x on these triangles and i'm a little stumped on this

Chanelle deposits $7,500 into the bank. she does not withdraw or deposit money for 6 years. she earns 6% interest during that time. what will the balance be when she is finally able to withdraw her money?

Which statement accurately explains whether a reflection over the x-axis and a 180° rotation would map figure acb onto itself?

Use the graph of the sine function y=2sinθ shown below