Below are I assume the choices, it can be found elsewhere:
A. 15x+10y≥250
B. x+y≤250
C. x+y≥20
D. 15x+10y≥20
E. x+y≤20
<span>F. 15x+10y≤250
</span>
The inequalities that represent constraints for this situation is 15x+10y<=250 and <span>x+y>20. Thank you for posting your question here. I hope the answer helps. </span>
The answer would be f(x)=9 because when you substitue the 3 in for 'x' you then square the 3.
Hope this helps!
Answer:
press this link and u will get the answers
https://www.math.tamu.edu/~rosanna/141/WIR2_done.pdf
Answer to your question : 8 vans
