The sum of -21.8 and a number is positive. Identify a possible value for that number. Explain you selection.

Which expression do you get when you eliminate the negative exponents of 4a^2 b^216a^-3 b

Every weekday, mr. jones bikes from his home to his job. sometimes he rides along two roads, the long route that is shown by the solid lines. other times, he takes the shortcut shown by the dashed line. how many fewer kilometers does mr. jones bike when he takes the shortcut instead of the long route?

Which function best fits the following points?