Rationalize the denominator and simplify: (sqrt= square root) 2 sqrt X - 3 sqrt Y

sqrt X + sqrt Y

Graph the line that represents a proportional relationship between d and t with the property that an increase of 33 units in t corresponds to an increase of 44 units in d. what is the unit rate of change of dd with respect to t? (that is, a change of 11 unit in t will correspond to a change of how many units in d? )