Find all the solutions of sec theta - 2 =0. it says use "or" as necessary and gives an example of kpi. i have no idea how to begin this..

The scale for a map is 20 miles = 1/2 inch. the distance between two towns on the map is 3 3/4 inches. what is the actual distance between these towns? 150 miles 38 miles 75 miles 135 miles

Write a function for a rotation 90 degrees counter clockwise about the origin, point 0

Me. i can't figure out this question. give an explanation too. .