Solve by any desired method. If there is no real number solution, say so.x2 + 4x = 7
A. x = -2 ± 
B. x = 2 + 
C. x = -2 ± 2
D. x = -1 ± 
Answer: A
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Solve the problem.Find an ordered pair that satisfies the equation x + y = 1 by letting y = 0.
A. (1, 0) B. (6, 4) C. (0, 1) D. (0, 0)
Solve the problem.Helen Weller invested $11,000 in an account that pays 12% simple interest. How much additional money must be invested in an account that pays 15% simple interest so that the average return on the two investments amounts to 13%?
A. $11,000 B. $8000 C. $5500 D. $7000
Solve the problem.A woman borrowed $10,000 at 14% interest compounded annually. If the loan was paid off at the end of 4 years, how much did she pay? Round to the nearest cent.
A. $15,600.00 B. $6889.60 C. $16,889.60 D. $11,400.00
Solve the problem.If x varies inversely as v, and 
when 
find x when 
A. x = 9 B. x = 25 C. x = 6 D. x = 30