Translate into an equation, and then solve the equation.Four added to what number equals nine?
A. 4 + x = 9; 6
B. 4 = x + 9; 5
C. 4 + x = 9; 5
D. 4 + x = 9; 4
Answer: C
Mathematics
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Simplify the complex number to its rectangular form.7j + 5j2
A. 12j B. 2 C. -5 + 7j D. 5 + 7j
Mathematics
Solve the problem.The five office workers at Southwest Appliances earned salaries last year of 
, 
, 
, 
, and 
. Find the mean salary.
A. $25,270 B. $26,600 C. $27,930 D. $29,260
Mathematics
Perform the indicated operations and simplify the expression.
?
?
A. 
B. 
C. 
D. 
E. 
Mathematics
Convert as indicated.8000 lb to tons
A. 4 tons
B. 4
tons
C. 3 tons
D. 5 tons
Mathematics