Find the domain of the function expressed by the formula:
y=1/x −7

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?

Can someone tell me if this is perpendicular? !

Triangles abd and ace are similar right triangles. witch ratio best explains why the slope of ab is the same as the slope of ac?