Solve.The temperature in Butte, Montana was -8°F. By 7:00 pm, it had dropped to -23°F. What was the change in temperature?
Fill in the blank(s) with the appropriate word(s).
Decrease 15°F
-8 - (-23) = 15
Mathematics
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Find the exact value of the expression.
A. -2
B. - 
C. -
D. - 
Mathematics
Write an equation for the line passing through the given pair of points. Give your final answer in standard form.(6, 0) and (0, 7)
A. 7x + 6y = 42 B. 6x - 7y = 42 C. 7x + 6y = 7 D. 7x - 6y = 42
Mathematics
Solve the equation.
+ 
= -23
A. 
B. 
C. 
D. 
Mathematics
Find functions f and g so that f ? g = H.H(x) = 
A. f(x) = x2 - 6; g(x) = 
B. f(x) = 
; g(x) = 
- 9
C. f(x) = 
- 9; g(x) = 
D. f(x) = 
, g(x) = x2 - 6
Mathematics