The velocity v that an object r units from Earth's center must have in
order to escape Earth's gravity is
given by v2 = 2GM, where G is a
constant. Solve for the object's
mass M.

Which expression gives the area of the triangle shown below

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?

Bernice paid $162 in interest on a loan of $1800 borrowed at 6%. how long did it take her to pay the loan off?