An Olympic sized swimming pool of uniform depth measures 50 meters by 21 meters. The bottom of the pool is treated with a sealer, and one galloon of the sealer covers 3000 sq feet of surface. How many galloons will be required for the job? Round to the nearest whole galloon.

Triangle xyz, with vertices x(-2, 0), y(-2, -1), and z(-5, -2), undergoes a transformation to form triangle x′y′z′, with vertices x′(4, -2), y′(4, -3), and z′(1, -4). the type of transformation that triangle xyz undergoes is a . triangle x′y′z′ then undergoes a transformation to form triangle x′y′z′, with vertices x″(4, 2), y″(4, 3), and z″(1, 4). the type of transformation that triangle x′y′z′ undergoes is a .