Which sum could be used to find the difference in thickness (in inches) between sheeting a and sheeting b. a= 1 7/20 b= 2 3/20

a: (-2 3/20)+(-1 7/20)

b: 2 3/20+ 1 7/20

c: 2 3/20 + (-1 7/20)

d: (-2 3/20) + 1 7/20

Can someone me with this problem . show your work .

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′?

Can someone me find the original price? the discount is 5% and the sale price is $68.40