Decide whether the problem is an equation or an expression.2(5x + 8) = 6(3x - 8)
A. Expression
B. Equation
Answer: B
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Solve the problem.The price of a desk was 4y. During a sale, the price was reduced by $80. The store sold 2x desks during the first week of the sale. Write an expression with parentheses to represent the value of the desks sold during the first week. Then use the distributive property to write the expression without parentheses.
A. 2x(4y - 80) = 8xy - 160 dollars B. 4y(2x - 80) = 8xy - 320y dollars C. 2x(4y - 80) = 8xy - 80 dollars D. 2x(4y - 80) = 8xy - 160x dollars
Solve the equation.0.2 = 23.7 - x
A. x = 23 B. x = 23.5 C. x = 23.9 D. x = 23.4
Write a linear function f that has the indicated values.f(-6) = 10, f(3) = -7
A. f(x) = - 
x - 
B. f(x) = 
x - 
C. f(x) = 
x - 
D. f(x) = - 
x - 
Use a polar coordinate system to plot the point with the given polar coordinates.(-4, 405°)
A. 
B. 
C. 
D. 