the sum of two numbers is 66. the larger number is 8 more than the smaller number. what are the numbers?

Find the value of tan theta if sin theta = 12/13 and theta is in quadrant 2

I'm confused on this could anyone me and show me what i need to do to solve it.

Acomputer store buys a computer system at a cost of $370.80. the selling price was first at $ 618, but then the store advertised a 20 % markdown on the system. answer parts a and b. a. find the current sale price.