John flies a plane against a headwind for 2668 miles. The return trip with the wind took 12 hours less time. If the wind speed is 6 mph, how fast does John fly the plane when there is no wind? He flighs mph

Q: How long did he spend at each speed?

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Equations and Inequations

Equations and inequalities describe the relationship between two mathematical expressions.

Linear Functions

A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.