Please Help i need the awnsers

2x + 1 < 5 solve the following inequality. then place the correct number in the box provided.

The triangles are similar. what is the value of x? show your work.

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°