2. Which point is a reflection of (12,-8)
across the y-axis on a coordinate plane?

The trigonometric ratios sine and secant are reciprocals of each other

Afrequency table of grades has five classes (a, b, c, d, f) with frequencies of 3, 13, 14, 5, and 3 respectively. using percentages, what are the relative frequencies of the five classes?

An airplane travels at an unknown elevation before it descends 3 miles to an elevation of 15 miles. find the elevation of the plane before its descen.