What set of 3 numbers have gcf of 3

The cost c, in dollars, for bananas depends on the weight w,in pounds, of the bananas. this situation is represented by the function rule c=0.5w (graph each function rule.tell whether the graph is continuous or discrete)

This is the number of parts out of 100, the numerator of a fraction where the denominator is 100. submit

Atriangle has a side lengths of 18cm, 80 cm and 81cm. classify it as acute obtuse or right?