Solve. Round to the nearest percent if necessary.A company increased the number of its employees from 130 to 221. What was the percent of increase?
A. 170%
B. 70%
C. 91%
D. 41%
Answer: B
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Use units to help you answer the question. If necessary, round your answer to two decimal places.An acre is equal to 43,560 square feet, and there are 5280 feet in a mile. If a farm has the shape of a rectangle measuring 0.9 miles by 1.5 miles, what is the area of the farm in acres?
A. 11.14 acres B. 864 acres C. 0.16 acres D. 1050 acres
The volume of a right-circular cylinder of radius r and height h is 
.
?
Suppose the radius and height of the cylinder are changing with respect to time t. At a certain instant of time, the radius and height of the cylinder are 6 and 3 in. and are increasing at the rate of 0.4 and 0.1 in./sec, respectively. How fast is the volume of the cylinder increasing?
?
A. 18 in3/sec B. 10.7 in3/sec C. 22.7 in3/sec D. 9.4 in3/sec
Provide an appropriate response.If the graphs of a system of two equations are both circles, what are the possible numbers of solutions (with real coordinates) of this system?
What will be an ideal response?
Graph the solution set of the system of inequalities or indicate that the system has no solution.y ? 3xy ? 8
A. 
B. 
C. 
D. 