An arithmetic sequence with a thrid term of 8 and constant difference of 5

Enter the number of complex zeros for the polynomial function f(x) = x 4+ 5x² +6

Write two point-slope equations for the line passing through the points (6, 5) and (3, 1)

Due to financial difficulties the owner of 4 skateboard stores is going to close 2 of his stores. based on the money earned at each store, which two stores should remain open?