Solve the systems of equations by the addition method. 
A. {(5, -3)}
B. {(0, 12)}
C. infinitely many solutions; {
3x + y = 12} or {
9x + 3y = 36}
D. no solution; ?
Answer: C
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Multiply and simplify.
? 3b
A. 
b
B. 
C. 
D. 11b
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A. $96 B. $192 C. $864 D. $202
Provide an appropriate response.The demand equation for a certain product is p = 25 - 0.005q, where p is the price per unit (in dollars) for q units. If its supply equation is p = 1 + 0.03q, then the consumers' surplus when market equilibrium is established is
A. $1176.49 B. $1250.87 C. $1500. D. $1675.30 E. $1800.
Find a z-score satisfying the given condition.82.9% of the total area is to the left of z.
A. 0.96 B. -0.95 C. -0.96 D. 0.95