A triangle has vertices at (-3,8), (3,0), and (7,3). Is the triangle isosceles

Add 1/7 + -1/7 your answer should be reduced to its smallest form and should not be an improper fraction

The population of a small rural town in the year 2006 was 2,459. the population can be modeled by the function below, where f(x residents and t is the number of years elapsed since 2006. f(t) = 2,459(0.92)

How many zeroes do we write when we write all the integers 1 to 243 in base 3?