I'm not sure what this means or how to do it can someone explain this to me and what the answer is? !

Simply 8x squared + 5(7x squared- x) - 2x =

Complete the solution of the equation. find the value of y when x equals to 1 9x-5y=29

Organic apples are on special for $1.50 per pound. does total cost vary inversely or directly with the number of pounds purchased? find the cost of 3.4 pounds of apples. a. inversely: $5.10 b. directly; $5.10 c. inversely: $2.27 d. directly; $2.27