Arare isotope of a nuclear material is very unstable, decaying at a rate of 14% each second. find how much isotope remains 13 seconds after 7 grams of the isotope is created. the mass of the remaining isotope is approximately _ g

Closing a credit card usually _your debt ratio.a. increasesb. decreasesc. improvesd. has no effect on

Hector and alex traded video games. alex gave hector one fourth of his video games in exchange for 6 video games. then he sold 3 video games and gave 2 video games to his brother. alex ended up with 16 video games. how many video games did alex have when he started?

Which diagram shows lines that must be parallel lines cut by transversal?