Use a proportion to solve the problem.A label printer prints 4 pages of labels in 4.0 seconds. How long will it take to print 36 pages of labels?
A. 39.00 sec
B. 36.00 sec
C. 40.00 sec
D. 38.00 sec
Answer: B
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Find the domain of the vector function r(t) = Figure 3.png)
 multiple choice.png)
Graph.x = 3y
A. 
B. 
C. 
D. 
Solve the problem.A conservation officer needs to know the width of a river in order to set instruments correctly for a study of pollutants in the river. From point A, the conservation officer walks 105 feet downstream and sights point B on the opposite bank to determine that ? = 50° (see figure). How wide is the river (round to the nearest foot)? 
A. 163 ft B. 125 ft C. 80 ft D. 88 ft
Solve the problem by using two equations with two variables.Julie and Eric row their boat (at a constant speed) 27 miles downstream for 3 hours, helped by the current. Rowing at the same rate, the trip back against the current takes 9 hours. Find the rate of the current.
A. 6 mph B. 4 mph C. 2.5 mph D. 3 mph