Provide an appropriate response.What two key facts must be known or determined from given information in order to write the equation of a straight line?
What will be an ideal response?
Slope of the line and a point on the line or two points on the line or the slope and y-intercept.
Mathematics
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A retailer has some skirts that cost her $32. If she sells them for $44.48, find her rate of profit based on the cost.
A. 34% B. 38% C. 41% D. 39% E. none of these
Mathematics
Simplify.[2(x - 5) - 2] + [3(x - 1) + 3]
A. 5x - 7 B. 2x - 15 C. 5x - 2 D. 5x - 12
Mathematics
Solve the problem. There are currently 77 million cars in a certain country, decreasing exponentially by 5.5% annually. How many years will it take for this country to have 67 million cars? Round to the nearest year.
A. 3 yr B. 42 yr C. 10 yr D. 2 yr
Mathematics
Divide and simplify to the form a + bi.
A. 
+ 
i
B. 
- 
i
C. 
- 
i
D. 
- 
i
Mathematics