15 workers working 8hrs a day can complete a piece of work in 20 days. In how many days will 10 workers do it, working 6 hrs a day? ​

In the polynomial below, what number should replace the question mark to produce a difference of squares? x2 + ? x - 36

The width of a rectangle is 20 units. can the perimeter p of the rectangle be 64 units when its length x is 11 units? no, because p = 2x + 2(20) no, because p ≠ 2x + 2(20) yes, because p ≠ 2x + 2(20) yes, because p = 2x + 2(20)

Glenda makes an online purchase for picture frames for $12.95 each and formats of $5.89 each the site says it taxes paid by the customer or 6.5% of the total purchase price shipping charges are based on the