describe positive numbers and negative numbers please! doesnt have to be a paragraph, just a sentence for each :)

The frequency table shows the results of a survey comparing the number of beach towels sold for full price and at a discount during each of the three summer months. the store owner converts the frequency table to a conditional relative frequency table by row. which value should he use for x? round to the nearest hundredth. 0.89 0.90 0.92 0.96

Solve 13 + w/7= -18 (w/7 is a fraction)

Look at the figure xyz in the coordinate plane. find the perimeter of the figure rounded to the nearest tenth.