The half-life or radium is 517 years. After 4,653 years there is only 7g left. Find how many grams there were at the beginning.

[15 points, algebra 2]simplify the complex fraction and find the restrictions.

Y=(x+3)(x-4)(x+1)^2 sulutions? multiplicity?

Will give brainliest for correct answer 8. use the distance time graph to answer these questions: a. what does the graph tell us about the velocity of the car? b. what is the average velocity of the car? (show work) c. is the velocity reflected in the graph positive or negative?d. is there any point on the graph where the car is not moving? how do we know?