The grades on a geometry midterm at Oak have a mean of u = 74 and a standard deviation of o = 4.0.
Nadia scored 70 on the exam.
Find the z-score for Nadia's exam grade. Round to two decimal places.

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′?