Find the value of x in the equation.x + 
= 
A. x = 
B. x = 
C. x = 
D. x = 4
Answer: A
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Rewrite without rational exponents, and simplify, if possible.(16x)7/2
A. 2
B. 128
C. 16,384x3
D. 16,384
Graph the equation using the table-of-solutions method.f(x) = x3 + 2
What will be an ideal response?
Solve the inequality. Give the solution set in both interval and graph forms.8x < 40
A. (-?, -5)
B. (-5, ?)
C. (5, ?)
D. (-?, 5)
Solve the problem.Regrind, Inc. regrinds used typewriter platens. The variable cost to regrind each platen is $1.30. The total cost to regrind 110 platens is 
Find the linear cost function to regrind platens. If reground platens sell for 
each, how many must be reground and sold to break even?
A. C(x) = 1.30x + 500; 46 platens B. C(x) = 1.30x + 357; 43 platens C. C(x) = 1.30x + 500; 61 platens D. C(x) = 1.30x + 357; 33 platens