If Z is the circumcenter of triangle QRS find each measure

QR=
RZ=
XS=
ZS=
WZ=​

Determine whether the graphs of y=8x+5 and -y=8x-5 are parallel, perpendicular, coincident, or none of these. a. coincident b. parallel c. perpendicular d. none of these

Add the fractions and simplify 1/2+ 1/3

Atheater wants to build movable steps that they can use to go on and off the stage. they want the steps to have enough space inside so they can also be used to store props. how much space is inside the steps?