Isabellas checkbook shows that she wrote a check for $987 for building materials, including tax. what was the price of the materials if the tax is 5%?

What number must you add to complete the square x^2+12x=16

The ratio pv to nrt is plotted against pressure for ch4 at 0°c and 200°c. why does the curve for 0°c drop below the horizontal line for an ideal gas whereas the curve for 200°c does not?

What is the percentile for data value 6 in the following data set? 4 13 8 6 4 4 13 6 4 13 2 13 15 5 9 4 12 8 6 13 40 25 35 62