Determine the unit vector in the direction of the vector a=12l + 5j​

If you answer right ill give brainliest, : )

Acylinder with a base diameter of x units has a volume of jxcubic units which statements about the cylinder are true? check all that apply. the radius of the cylinder is 2 x units. the radius of the cylinder is 2x units. the area of the cylinder's base is 200 square units. the area of the cylinder's base is a square units. the height of the cylinder is 2x units. the height of the cylinder is 4x units. mark this and return save and exit next submit

Angles r and s are complementary. the measure of angle r is 31 degrees. which equation can be used to find angle s?