Write the English phrase as an algebraic expression. Let x represent the number. Simplify the expression, if possible.6 less than 5 times a number
A. 5 - 6x
B. 5x - 6
C. 6x - 5
D. 6 - 5x
Answer: B
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Add.-8 + (-7)
A. 15 B. -15 C. -1 D. 1
Solve the problem by using a nonlinear system.In 1979, 
and 
had the same population. The population of 
continued to increase steadily, while the rate of population growth of 
(although initially less than that of 
)
eventually overtook the growth rate of City #2. The populations of two cities are modeled by the following equations: 
: 
; 
: 
, where 
corresponds to the year 1979. In what year after 1979 did the cities have the same population?
A. 1984
B. 1982
C. 1985
D. 1983
Find the median. Round to the nearest tenth when necessary.19.2, 19.3, 18.4, 18.5, 19.2, 18.3
A. Median = 19.2 B. Median = 18.5 C. Median = 37.7 D. Median = 18.85
Find the sum or difference. Write the answer in standard form.(4 + 9i) - (-8 + i)
A. -4 + 10i B. 12 - 8i C. 12 + 8i D. -12 - 8i