After stepping into a room with unusual lighting, Wendy's pupil has a diameter of 2.45 millimeters. What is the pupil's radius?

15 point ! ~ see if you know the answer to both you!

The trigonometric ratios sine and secant are reciprocals of each other

2. there are 250 students in a school auditorium. use numbers from the box to complete the table. 16, 38, 18, 45, 25, 50, 32, 60 grade number percent of all students of students fifth 24 sixth 95 seventh 20 eight 45