0.135 infinite written as a fraction

Aflute is on sale for 20% off. including the discount and 8% tax, the sales price is $216.

The length of a shadow of the building is 36m. the length of the pole, which is perpendicular to the ground, is 1.9m. the length of the pole's shadow is 1.52m. what is the height of the building?

Gabrielle's age is two times mikhail's age. the sum of their ages is 84. what is mikhail's age?