Solve the equation. State whether the equation is a contradiction, an identity, or a conditional equation.19x + 7(x + 1) = 26(x + 1) - 19
A. all real numbers; identity
B. ? or { }; contradiction
C. {1}; conditional equation
D. {0}; conditional equation
Answer: A
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Evaluate and simplify.If f(x) = 3x - x3, find f 
.
A. 
B. 
C. 
D. 
Solve the problem.You have a tax refund of $496.61. You are able to get the tax refund immediately from your tax preparation agency for a finance charge of $49.88. What annual simple interest rate are you paying for this loan assuming the tax refund check would be available in 13 days? Round to the nearest hundredth.
A. 27.81% B. 30.92% C. 309.20% D. 278.14%
Find the product, AB, if possible.A = 
, B = 
A. AB is not defined.
B. 
C. 
D. 
Multiply or divide measurement numbers, rounding to the correct precision.4 sq ft ÷ 2.14
A. 1.87 sq ft B. 1.6 sq ft C. 1.8 sq ft D. 1.7 sq ft