7.A sound system has a regular price of $249. Find the total cost if it is on sale for 50% off, and the sales tax is 5.75$. 1. $124.50

2. $107.75

3.$131.66

4.0.50

Angle xyz is formed by segments xy and yz on the coordinate grid below: a coordinate plane is shown. angle xyz has endpoints at 3 comma negative 1 and 6 negative 2 and 3 comma negative 3 and measures 36.87 degrees. angle xyz is rotated 270 degrees counterclockwise about the origin to form angle x′y′z′. which statement shows the measure of angle x′y′z′?

Measure of angles 31 (x+4) (3x+9) me

With finding limits of multi variable !