Write a number with an 8 in the hundreds place

Find the given elements if matrix d:

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°

3x = 729 solve for x plz . it's urgent. will mark