George is given two circles, Circle O and Circle X, as shown. If he wants to prove that two circles are similar, what would be the correct FOURTH step in his proof? Given: The radius of Circle O is r, and the radius of circle X is r’ . Prove: Circle O is similar to circle X. ANSWER CHOICES AND FULL QUESTION BELOW. Thank you!!!

Answer asap ill give ! ’ a sample of radioactive material decays over time. the number of grams, y , of the material remaining x days after the sample is discovered is given by the equation y = 10(0.5)^x. what does the number 10 represents in the equation? a. the half-life of the radioactive material, in days b. the amount of the sample, in grams, that decays each day c. the time, in days, it will take for the samples to decay completely d. the size of the sample, in grams, at the time the material was discovered

Write an equation of the line that passes through the point (2, 3) and is perpendicular to the line x = -1. a) y = 1 b) y = 3 c) y = 0 eliminate d) y = -3

Atransformation t : (x, y) (x-5,y +3) the image of a(2,-1) is