2) One lap around a dirt track is 1/3 mile. It takes Bryce 1/9 hour to ride one lap. What is Bryce’s unit rate, in miles, around the track? * 27

1/27

3

1/3

explanation appreciated

Use the knowledge of x- and y- intercepts to choose the correct graph of the equation 3x+6y=6

5,600 x 10^3 = a) 560 b) 5,000,600 c) 5,600,000 d) 56,000

Suppose that the price p (in dollars) and the weekly sales x (in thousands of units) of a certain commodity satisfy the demand equation 4p cubedplusx squaredequals38 comma 400. determine the rate at which sales are changing at a time when xequals80, pequals20, and the price is falling at the rate of $.20 per week.