Solve the problem.Add (6a4 - 7a2) and (5a4 - 2a2).
A. 2a6
B. 11a4 - 9a2
C. 2a12
D. 11a8 - 9a4
Answer: B
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Round 54,721 to the nearest ten.
A. 54,700 B. 54,730 C. 50,000 D. 54,720 E. 54,800
Answer the question.Police use a formula s = S 
, where S is the test-car speed and L is the test-skid length, to find the actual speed s in an accident which left a skid mark of l. Find the speed (nearest whole mph) when 
A. 77 mph B. 52 mph C. 95 mph D. 113 mph
Provide an appropriate response.Solve the following system of equations using the addition method: x - y = 3 x + y = 5
Fill in the blank(s) with the appropriate word(s).
Solve the problem.The function 
can be used to determine the milligrams D of a certain drug in a patient's bloodstream h hours after the drug has been given. How many milligrams (to two decimals) will be present after 
A. 0.45 mg B. 651.61 mg C. 0.1 mg D. 4.95 mg