A bacteria culture started with 200 bacteria at 2 p. m. After 1 hour, the population has grown to 240 bacteria. Assume the population grows exponentially (geometric).
1. Find an explicit formula that gives the number of bacteria n hours after 2 p. m.
2. Use your formula to find the number of bacteria at 9 p. m. Round your answer
to nearest integer.

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 .