Show a pikcher of a 180 digris spin

Can anyone me with 32,33,36,37,and 40.

Write a function for a rotation 90 degrees counter clockwise about the origin, point 0

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.