Answer:
.. f (x) = 3x7 – x4 + 2x3 – 5x2 – 4.
Step-by-step explanation:
<span>5. Myra has been at her job for 3 months. She earns $2,500 per month--- C 750</span>
Rectangle=21 times 14=294 cm^2
Triangle=Base Times Height
Height=21-12=9cm
Area of triangle=16 times 9 =144
Area of both=294+144=438cm^2
B is the answer
Hope this helps