Find the amount of sales tax or tax rate and the total cost. Round money answers to the nearest cent if necessary.Amount of sale: $438 Amount of tax: $26.28
A. 6%, $464.28
B. 8%, $464.28
C. 0.6%, $464.28
D. 7%, $464.28
Answer: A
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Solve the system of equations using elimination. 
A. 
B. (20a, -3)
C. 
D. 
Expand the expression using the Binomial Theorem.(x - 7)5
A. x5 - 35x4 + 490x3 - 3,430x2 + 12,005x - 16,807 B. x5 - 35x4 + 980x3 - 6,860x2 + 12,005x - 7 C. x5 - 35x4 + 980x3 - 6,860x2 + 12,005x - 16,807 D. x5 - 35x4 + 490x3 - 3,430x2 + 12,005x - 7
Solve the right triangle.B = 32.9°, c = 2.0 mm, C = 90°
A. a = 1.1 mm, A = 57.1°, b = 1.7 mm B. a = 1.7 mm, A = 57.1°, b = 0.9 mm C. a = 1.7 mm, A = 57.1°, b = 1.1 mm D. a = 0.9 mm, A = 57.1°, b = 1.8 mm
Rewrite the expression using the indicated property of real numbers.Commutative property of multiplication:
(9 + 5) ? 3
A. 9 ? 3 + 5 ? 3 B. 3(9 + 5) C. 9 + (5 ? 3) D. (5 + 9) ? 3