Do the ordered pairs below represent a relation, a function, both a relation and a function, or neither a relation or function? (-1,-1),(3,-9),(6,-15),(9,-21)

Sara needs to take a taxi to get to the movies the taxi charges $4.00 for the first mile and then $2.75 for each mile after that if the total charge is $20.50 then how far was sara’s taxi ride to the movie

Three numbers x, y, and z are in the ratio 2: 7: 8. if 12 is subtracted from y, then three numbers form a geometric sequence (in the order x, y–12, z). find x, y, and z. there are 2 sets.

F(x)=5/6x+3 which of the following is true