What is the answer of 4358 rounded to the nearest thousand

Estimate the product. round the first factor to the nearest whole number, round the second factor to the nearest ten, and then multiply. 3 8/9 × 96

Elena is paid a constant rate for each hour she works. the table shows the amounts of money that elena earned for various amounts of time that she worked.

If 3 3/4 lb. of candy costs 20.25 how much would 1lb. of candy cost