Solve.7x - (4x - 1) = 2
A. 
B. - 
C. - 
D. 
Answer: D
Mathematics
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Solve the problem.A salesperson has two job offers. Company A offers a weekly salary of $400 plus commission of 10% of sales. Company B offers a weekly salary of $800 plus commission of 5% of sales. What is the amount of sales above which Company A's offer is the better of the two?
A. $8000 B. $8100 C. $16,000 D. $4000
Mathematics
Solve.A test contains 31 questions of which a student must answer 28. In how many ways can the student select the questions to answer?
A. 13,485 B. 1.713 x 1032 C. 4.111 x 1033 D. 4495
Mathematics
Solve the equation.
= 7
A. 49
B. 
C. 7
D. 
Mathematics
Find the square root. Assume that all variables represent positive real numbers.
A. 12 B. not a real number C. -72 D. -12
Mathematics