Help me answer this please, you can ignore the answers I marked.

If a and b are the measures of two first quadrant angles and sin a = 4/9 and sin b = 2/5 find sin(a+b).

Choose all that apply. select all of the fees a credit card may have. annual fee apr balance transfer fee cash advance fee late fee overdraft fee over-the-limit fee

The amount spent on food and drink by 20 customers is shown below what is the modal amount spent ?