Working alone, it takes Paul nine hours to oil the lanes in a bowling alley. Pranav can oil the same lanes in ten hours. How long would it take them if they worked together?

What are the solutions to the equation 4x2+3x=24-x

How many different three-digit numbers can be formed using the digits 1 comma 2 comma 9 comma 6 comma 4 comma 3 comma and 8 without repetition? for example, 664 is not allowed.

The dash figure is a dilation if the original figure. find the scale factor. classify the dilation as an enlargement or a reduction