Solve the problem.Police use the formula s = 
to estimate the speed s of a car in miles per hour, where d is the distance in feet that the car skidded and f is the coefficient of friction. If the coefficient of friction on a certain dry road is 0.85 and a car was traveling on it at a rate of 
how far will the car skid? (Round to the nearest foot.)
A. 30 ft
B. 28 ft
C. 35 ft
D. 230 ft
Answer: C
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Solve the problem.Find the sum of the infinite series 1 + 2r + 5r2 + 2r3 + r4 + 2r5 + 5r6 + 2a7 + r8 ... for those values of r for which it converges.
A. 
B. 
C. 
D. 
Graph the function. State the domain and the range of the function.f(x) = log1/4 x
A. Domain: (-?, ?); Range: (0, ?)
B. Domain: (0, ?); Range: (-?, ?)
C. Domain: (0, ?); Range: (-?, ?)
D. Domain: (-?, ?); Range: (0, ?)
Solve the problem.The ratio of a quarterback's completed passes to attempted passes is 9 to 10. If he attempted 
find how many passes he completed. Round to the nearest whole number, if necessary.
A. 33 passes B. 3 passes C. 27 passes D. 10 passes
Solve.Amy teaches Chinese lessons for $45 per student for a 6-week session. From one group of students, she collects $1575. Find how many students are in the group.
A. 39 students B. 35 students C. 37 students D. 25 students