Find the sum of the finite geometric series
-3+6-12+24+-48+96-192+384

Plz me i need i will give a brain

What is the relationship between all triangles that can be drawn given the same three angles

Someone this asap for a group of students attends a basketball game. * the group buys x hot dogs at the concession stand for $2 each. * the group buys y drinks at the concession stand for $3 each. the group buys 29 items at the concession stand for a total of $70. how many hot dogs did the group buy?