Find the product. Assume variables represent positive real numbers.7k1/8(3k3/8+ 3k3/4)
A. 21k1/2 + 21k7/8
B. 21k-1/4 - 21k-5/8
C. 21k1/2 - 21k7/8
D. 21k3/64 + 21k3/32
Answer: A
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Write an algebraic expression to answer the question and simplify.A stack of currency contains 60 bills. In the stack are x $20 bills. The rest are $50 bills. How much money is in the stack of bills?
A. 20x + 50(60 - x); -30x + 3000 dollars B. 20x - 50(60 - x); 70x - 3000 dollars C. 20x + 50(60 - x); 30x + 3000 dollars D. Cannot be solved
Solve.How many different rotational symmetries does a square have?
A. 4 B. 5 C. 3 D. 2
Solve the problem. Round rates to the nearest tenth of a percent and dollar amounts to the nearest cent.A jewelry store purchased 80 fashion watches for $2400. If the store sold 40 watches at $60, 32 watches at $54, and the rest at $30, find (a) the total markup, (b) the markup percent on selling price, and (c) the equivalent markup percent on cost.
A. $1968, 45.1%, 82% B. $1968, 82%, 45.1% C. $2400, 55%, 72% D. $4368, 100%, 182%
Rewrite the expression with a positive rational exponent. Simplify, if possible.125-1/3
A. -5
B. 
C. 
D. - 