Leonard can read 5 pages in 15 minutes. Betty can read 15 pages in 1 hour. Explain how you could use a table or graph to find how much longer it would take Betty to read a 900-page book than Leonard.

What is the value of x in the equation 6(x + 1) – 5x = 8 + 2(x – 1)?

15 and 14.7 are 1 apart, so 15 – 14.7 must be 1.

The edge of a cube was found to be 30 cm with a possible error in measurement of 0.4 cm. use differentials to estimate the maximum possible error, relative error, and percentage error in computing the volume of the cube and the surface area of the cube. (round your answers to four decimal places.) (a) the volume of the cube maximum possible error cm3 relative error percentage error % (b) the surface area of the cube maximum possible error cm2 relative error percentage error %