Perform the indicated operation and simplify.
+ 
- 
A. 
B. 
C. 
D. 
Answer: B
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Use the power rules to simplify the expression. Use positive exponents to write the answer.
-3
A. 
B. - 
C. 
D. - 
Solve.A ladder is resting against a wall. The top of the ladder touches the wall at a height of 6 feet. Find the length of the ladder if the length is 2 feet more than its distance from the wall.
A. 6 feet B. 12 feet C. 10 feet D. 8 feet
Find the slope-intercept form of the equation of the line with the given properties.Slope = 0; containing the point (8, 10)
A. y = 8 B. x = 8 C. y = 10 D. x = 10
Solve.The population of a particular city is increasing at a rate proportional to its size. It follows the function 
where k is a constant and t is the time in years. If the current population is 47,000, in how many years is the population expected to be 117,500? (Round to the nearest year.)
A. 31 yr B. 193 yr C. 18 yr D. 13 yr