Find the limit of the function algebraically x--> 9 x^2-81/x-9

Which property is illustrated by the statement given below? raj raj.

Two cyclists 84 miles apart start riding toward each other at the same. one cycles 2 times as fast as the other. if they meet 4 hours later, what is the speed (in mi/h) of the faster cyclist?

The ratio of the measures of the three angles in a triangle is 2: 9: 4. find the measures of the angels