Solve.The temperature at 1 p.m. on January 20 was -12° Fahrenheit. By 9 p.m. the temperature had risen 18 degrees. Find the temperature at 9 p.m.
A. 30°
B. -6°
C. -30°
D. 6°
Answer: D
Mathematics
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B. 
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Determine the equation of the line described. Put answer in the slope-intercept form, if possible.Through (-4, -5), perpendicular to -2x - 7y = -27
A. y = 
x - 
B. y = 
x + 9
C. y = - 
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b. 
c. 
d. 
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