Solve the formula for the specified variable.a + b = s + r for s
A. s = 
B. s = a + b - r
C. s = 
+ b
D. s = r(a + b)
Answer: B
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Perform the indicated operation and write the answer in lowest terms. 
A. 
B. 
C. 
D. 
Solve the problem.For a complex number C, define z0 = 0, z1 = C, z2 = (z1)2 + C = C2 + C z3 = (z2)2 + C = (C2 + C)2 + C . . . zn+1 = 
+ C (square the previous answer and add C).The Mandelbrot set is usually displayed by giving each complex number C = a + bi a color determined by the smallest integer n for which 
? 2. Use the above definition, the definition 
and the table below to find the color assigned to the given complex
number. Smallest value of n for which 
> 2Color1Pink2Yellow3Orange4BlueC = 1 + 
i
A. Pink
B. Blue
C. Orange
D. Yellow
Evaluate.Evaluate x + y + 11, if x is 28 and y is 39.
A. 78 B. 79 C. 67 D. 77
Solve the problem.The charges for renting a moving van are $55 for the first 50 miles and $4 for each additional mile. Assume that a fraction of a mile is rounded up. Find a symbolic representation for a function f that computes the cost of driving the van x miles, where 
(Hint: express f as a piecewise-constant function.) Then, determine the cost of driving the van 85 miles.
A. f(x) = 
; $595
B. f(x) = 
; $595
C. f(x) = 
; $195
D. f(x) = 
; $4815