If angle m=(25x+1)degrees, angle c=(25x-2)degrees, angle d=(20x-1)degrees, and angle b=82 degrees what is angle a

(98 points) i need with 5 questions. answer definitions are welcomed, but not necessary.

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

What is the measure of angle x? answer