Solve. Round to the nearest percent if necessary.Enrollment in a class at a local college increased from 40 to 72. What was the percent of increase?
A. 32%
B. 44%
C. 180%
D. 80%
Answer: D
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Solve the problem.The inequality |T - 8| ? 13 describes the range of monthly average temperatures T in degrees Fahrenheit at a City X. (i) Solve the inequality. (ii) If the high and low monthly average temperatures satisfy equality, interpret the inequality.
A. -20 ? T ? 36; The monthly averages are always within 
B. -5 ? T ? 21; The monthly averages are always within 
C. 21 ? T ? 34; The monthly averages are always within 
D. 36 ? T ? 64; The monthly averages are always within 
Subtract.-80 - (-22)
A. -58 B. 102 C. 58 D. -102
Graph the hyperbola.25y2 - 4x2 = 100
A. 
B. 
C. 
D. 
Provide an appropriate response.When is the square of the sum the sum of a square; i.e., when is (A + B)2 = A2 + B2 ?
What will be an ideal response?