Find an equation of variation in which the following are true.y varies directly as the square of x, and y = 5.6 when x = 4.
A. y = 0.35x2
B. y = 1.92x2
C. y = 0.4x2
D. y = 0.39
Answer: A
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Solve the problem.Stan and Ron's hobby is building birdhouses. The number of wren houses cannot exceed 4 times the number of martin houses. They cannot make more than 60 wren houses or more than 50 martin houses. The total production cannot exceed 75. The profit on a wren house is $7.60 and the profit on a martin house is $6.40. Find the maximum profit.
A. $320.00 B. $540.00 C. $552.00 D. $1840.00
Use the table to solve the problem.The cost in dollars of driving a certain make and model of car for x miles is given by the function f. A numerical representation of f is given in the following table. 
If the cost is $1.96, how many miles have been driven?
A. 3 miles B. 5 miles C. 4 miles D. 6 miles
Graph the polar equation.r = 4 - cos ?
A. 
B. 
C. 
D. 
Make the indicated conversion within units of time.Convert 7 days to minutes.
A. 10,080 minutes B. 604,800 minutes C. 25,200 minutes D. 168 minutes