Step-by-step explanation:
F(x) = -2x² + x + 1.
Therefore F(3) = -2(3)² + (3) + 1
= -18 + 3 + 1 = -14.
Answer:
it's letter DDDDDDDDD
85%
Monday:
200 x 0.70 = 140
200 - 140 = 60
Tuesday:
400 x ? = 60
400 x 0.85 = 340
400 - 340 = 60