Perform the indicated operations.Subtract (3x - 30) from the sum of (-2x + 9) and (9x - 13).
A. 10x - 34
B. -4x - 26
C. 8x + 52
D. 4x + 26
Answer: D
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Find all points where the function is discontinuous.
A. x = 3 B. None C. x = 0 D. x = 0, x = 3
The demand equation for a certain brand of metal alloy audiocassette tape is 
, where x represents the number (in thousands) of ten-packs demanded each week when the unit price is $p. How fast is the quantity demanded increasing when the unit price/ten-pack is $10 and the selling price is dropping at the rate of $.13/ten-pack/week? Round the answer to the nearest integer.
?
Hint: To find the value of x when p = 10, solve the equation 
for x when p = 10.
?
Increasing at the rate of __________ ten packs/wk.
Fill in the blank(s) with the appropriate word(s).
Solve the equation.m2 + 10m + 15 = 0
A. {-10 + 
, -10 - 
}
B. {5 + 
, 5 - 
}
C. {-5 + 
, -5 - 
}
D. {5 + 
, 5 - 
}
Use a proportion to solve the problem.The scale on a map is 
inch to 4 miles. Find the actual distance between two towns for which the distance is represented by 34 inches on the map.
A. 547.85 mi B. 532 mi C. 544 mi D. 536.5 mi