Does 6 feet and 12 inches equally to 1 yard and 4 ft yes or no

Ibeg you to me 20. a reaction produces 4.93 l of oxygen, but was supposed to produce 1 mol of oxygen. what is the percent yield?

Typically a point in a three dimensional cartesian coordinate system is represented by which of the following answers in the picture !

Afair die is cast four times. calculate the probability of obtaining exactly two 6's round to the nearest tenth of a percent