What are the options? But I think a good estimate is $700.
What does that mean cause I don't know if it is possibility
(311&1/4-186&3/4)/(5-3)=62&1/4
so the difference between each adjacent number is 62&1/4
when the top number is 4, the bottom number is 186&3/4+62&1/4=249 (a)
when the top number is 4, the bottom number is 311&1/4+62&1/4=373&1/2 (b)
C=10
Its 8 divided by 3 which equals 2.6
4x^2-6x^4+2x^5-x+1 is the correct order