Solve for x.
x + 
= - 
x - 
A. x = - 
B. x = 
C. x = 
D. x = - 
Answer: D
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If the line passing through the points 
is parallel to the line passing through the points 
and 
class="wirisformula" align="middle" style="vertical-align: middle;" data-wiris-created="true" varid="variable_id_field" variablename="impvar_3934cbf29cfd4e52a14a40d98" />, what is the value of a?
?
A. 
B. 
C. 
D. 
E. 
Some bank robbers leave town, speeding at 24 mph. 25 minutes later, the police give chase, traveling at 34 mph. How long (in hours) will it take the police to overtake the robbers? ? Please enter your answer as a number without the units.
Fill in the blank(s) with the appropriate word(s).
Solve the system by the addition method, if possible. If a solution exists, give the value of x.
?
?
A. -1 B. ?4 C. ?2 D. ?-2 E. no solution
Solve the problem.Sergio's internet provider charges its customers $15 per month plus 4¢ per minute of on-line usage. Sergio received a bill from the provider covering a 
period and was charged a total of $101.00. How many minutes did he spend on-line during that period? (Round to the nearest whole minute, if necessary.)
A. The number of minutes is 65. B. The number of minutes is 1815. C. The number of minutes is 650. D. The number of minutes is 1565.