Find the sum and choose the correct answer.
2n 3 + 4n 2 - 7 and -n 3 + 8n - 9

Peaches cost $4.29 per pound. find the cost of two and a quarter pounds of peaches.

The table shows the webster family’s monthly expenses for the first three months of the year. they are $2,687.44, $2,613.09, and $2,808.64. what is the average monthly expenditure for all expenses?

Find the solution set of this inequality. enter your answer in interval notation using grouping symbols. |8x-4| ≤ 12