What are the possible rational zeros of f(x) = x4 - 4x3 + 9x2 + 5x + 14? a.) ± 1, ± 1 over 2, ± 1 over 7, ± 1 over 14 b.) ± 1, ± 2, ± 7, ± 14 c.) ± 1, ± 1 over 4,± 1 over 5, ± 1 over 9, ± 1 over 14. d.) ± 1, ± 4, ± 5, ± 9, ± 14.

You’re ordering more thread for blue jeans co. you usually purchase from ted’s threads, which sells 12 thread spools for $27. you recently received a notice from wade's wares that says you can buy thread from them for $2.30 each for the first 2 dozen and $2 a spool thereafter. you need to order 5 dozen spools. what percentage can you save by going with wade’s wares?