Compare the perimeter to the area in each of problems (9 - 14). In what way are the numbers and units in the perimeters and areas different?

The equation x2 – 1x – 90 = 0 has solutions {a, b}. what is a + b?

Of the ones listed here, the factor that had the greatest impact on the eventual destruction of native americans' ways of life was the development of the a) automobile. b) highway. c) railroad. d) steamboat.

Look at arnold's attempt to solve the equation for b: 3b = 12 b = 3 · 12 b = 36 describe the mistake that arnold made.