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: $255 Amount of tax: $15.30
A. 8%, $270.30
B. 6%, $270.30
C. 0.6%, $270.30
D. 7%, $270.30
Answer: B
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Use either the binomial theorem or Pascal's Triangle to expand the binomial.
3
A. 
x3 + 
x2 + 64
B. 
x6 + 
x3 + 64
C. 
x3 + 
x2 + 16x + 64
D. 
x3 + 
x2 + 16x + 64
Solve the problem.The student body at Hickory Middle School is voting for which new food item should be added to the school's cafeteria menu. The choices are Turkey Club (TC), Popcorn Shrimp (PS), BBQ Ribwich (BR), and Tofu Stir fry (TS). The following table gives the preference schedule for the results of the vote. 
Suppose that the voting rules are that when there is a food item with a majority of votes, it is the winner. Otherwise, all candidates with 20% or less of the first-place votes are eliminated and the votes are recounted. Find the preference schedule for the recount.
A. 
B. 
C. 
D. 
E. 
Solve the rational equation.
= 
A. {5, -1} B. {5, 1} C. {25, -1} D. {25, 1}
Perform the indicated operation and simplify. Assume all variables in the radicand are greater thanor equal to zero.
A. 6x3y4
B. 6x3y4
C. 6x7y8
D. 6y4