Determine whether triangle RST or triangle LMN is similar to triangle ABC?

Find the multiplicative inverse of 8-12i

Pyotr tchaikovsky sporting goods operates on a 45% overhead based on the selling price, which results in an overhead of $65.34 on the newest version of an air hockey game set. if the air hockey game set costs pyotr tchaikovsky sports $49.32, find the selling price, the markup, and the net profit.

What are two numbers that have a sum of 15