Use the functions f(x)=4x+1,g(x)=2x2−6x, h(x)=−x2+3x−19 and for questions 18 - 20. A.) x²-9x-19
B.)3x²-9x+19
C.)-3x²-3x-19
D.)-3x²+9x-19

Scarlet bought three pairs of sunglasses and two shirts for $81 and paula bought one pair of sunglasses and five shirts for $105 what is the cost of one pair of sunglasses and one shirt?

F(x) = x2 − 9, and g(x) = x − 3 f(x) = x2 − 4x + 3, and g(x) = x − 3 f(x) = x2 + 4x − 5, and g(x) = x − 1 f(x) = x2 − 16, and g(x) = x − 4 h(x) = x + 5 arrowright h(x) = x + 3 arrowright h(x) = x + 4 arrowright h(x) = x − 1 arrowright

Ineed to know the answer to this algebra question.