David and fiona have a house painting business. fiona can paint a house in 3 days, david can paint the same house in 4. how quickly could they paint it together?

The line y = x + passes through (−3, 7) and is parallel to y = 4x − 1.

Given the statements, "a square root of 16 is 4," and "a square root of 9 is -3," complete the following blanks with the correct truth-values. p is and q is , so the statement, "a square root of 16 is 4 or a square root of 9 is -3" is .

Tom can paint the fence in 12 hours, but if he works together with a friend they can finish the job in 8 hours. how long would it take for his friend to paint this fence alone?