Solve the system by the substitution method or the addition method.
A. (4, 3)
B. no solution
C. (-3, 4)
D. (-2, 0)
Answer: A
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Solve for the amount of discount and amount due.Invoice amt: $642.39Invoice date: Sept 11Terms: 3/14 EOMGoods rec'd: Sept 14Date paid: Nov 12
A. Amount of discount: $18.97; amount due: $631.39 B. Amount of discount: $19.27; amount due: $623.12 C. Amount of discount: $0; amount due: $642.39 D. Amount of discount: $89.93; amount due: $552.46
Solve the problem.In a certain town the annual consumption, b, of beef (in pounds per person) can be estimated by 
where t is the number of years since 2010. What is the slope of the graph of this function? Write a sentence interpreting this value.
A. 35; The average consumption of beef in this town is increasing by 35 pounds per person per year. B. 35; The average consumption of beef in this town is decreasing by 35 pounds per person per year. C. -0.4; The average consumption of beef in this town is decreasing by 0.4 pounds per person per year. D. -0.4; The average consumption of beef in this town is increasing by 0.4 pounds per person per year.
Solve the problem.The sum of a student's three scores is 224. If the first is 13 points more than the second, and the sum of the first two is 29 more than twice the third, then what was the first score?
A. 73 B. 52 C. 65 D. 86
Solve the polynomial inequality.x3 + 10x2 + 27x ? -18
A. (-?, 1] ? [3, 6] B. (-?, -6) ? (-3, -1) C. [-6, -3] ? [-1, ?) D. (-?, -6] ? [-3, -1]