Solve by the substitution method.-6x + 9y = -544x - 6y = 36
A. (8, 1)
B. (9, 0)
C. (0, 9)
D. (-54, 36)
Answer: B
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Solve.A TV has a screen area of 1877 in.2, which is how many square feet? Round to the nearest square foot.
A. 156 ft2 B. 14 ft2 C. 19 ft2 D. 13 ft2
Solve. Round the dollar amount to the nearest penny. Answer with a complete sentence.How much sales tax is there on a pair of gloves that cost $21.44 if the sales tax rate is 0.035?
A. There is $0.65 sales tax on the gloves. B. There is $0.75 sales tax on the gloves. C. There is $0.80 sales tax on the gloves. D. There is $0.83 sales tax on the gloves.
Multiply and simplify any radicals in your answer. Assume that all variables represent positive real numbers.(11
)(7
)
A. 154
B. 77
C. 154
D. 308
Solve triangle ABC. If necessary, round the answer to the nearest tenth. 
A. C = 45°, a = 6.7 ft, c = 8.2 ft B. C = 50°, a = 8.2 ft, c = 6.7 ft C. C = 50°, a = 6.7 ft, c = 8.2 ft D. C = 55°, a = 8.2 ft, c = 6.7 ft