The sales tax 
, in dollars, I have to pay when I buy 
dollars worth of merchandise is given by
.
Identify the slope, and explain in practical terms its meaning in terms of percentages.
What will be an ideal response?
The slope is 0.07 dollars per dollar. The sales tax is 7.00 percent.
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An airplane leaves New York and flies south at a constant speed to Miami, where it lands and takes on new passengers. It then makes the return flight at a constant speed. Make a graph that shows distance north of Miami over the period of the round-trip flight. Be sure to label your graph appropriately. ? ? ? .
What will be an ideal response?
Find a set of polar coordinates for the point for which the rectangular coordinates are given.(2
, 2)
A. 
B. 
C. 
D. 
Find the limit and determine if the function is continuous at the point being approached.
tan 
A. -1; no B. -1; yes C. Does not exist; no D. 0; yes
Given the set sketched on the number line, identify the type of interval (open, closed, half-open, open infinite, closed infinite), write the set using set-builder notation, and write the set using interval notation.
A. half-open interval; {x|2 < x ? 8}; (2, 8] B. closed interval; {x|2 ? x ? 8}; [2, 8] C. open interval; {x|2 < x < 8}; (2, 8) D. half-open interval; {x|2 ? x < 8}; [2, 8)