Let u = < -9,4> , v = < 8, -5> . find u - v.

Explain how you can use the associative property to evaluate (7x50)x4.

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?

Arational number that is equivalent to -20/4?