What is the value of 7m−3n when m = 3 and n = 2? 5 15 24 36

Find the solution of this system of equation -7x+y=-20 9x-3y=36

What is the frequency of the sinusoidal graph?

If two angles of a triangle have equal measures and the third angle measures 90°, what are the angle measures of the triangle? a. 60°, 60°, 60° b. 45°, 90°, 90° c. 30°, 30°, 90° d. 45°, 45°, 90°