Make a conjecture must the difference between two rational numbers be rational number? explain

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

Can you me find the missing length. i attached an image.

Afamily went out to dinner and their bill was $113.if they want to leave a 19% tip, how much should they leave.