Write an expression in terms of the given variable(s) that represents the indicated quantity.The cost of having an electrician spend h hours at your house if the electrician charges $48 for coming to the house and $x per hour for labor
A. 48 + x dollars
B. 48h + x dollars
C. 48x + h dollars
D. 48 + hx dollars
Answer: D
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Find the absolute maxima and minima of the function on the given domain.
on the diamond-shaped region 
A. Absolute maximum: 
at 
and 
absolute minimum: 0 at 
and 
B. Absolute maximum: 
at 
and 
absolute minimum: 8 at 
and 
C. Absolute maximum: 8 at 
and 
absolute minimum: 0 at 
D. Absolute maximum: 
at 
and 
absolute minimum: 0 at 
Use the properties of logarithms to evaluate the expression.10log t
A. 10t B. t C. 10t D. 1
Solve the system of equations using substitution.
A. x = 0, y = 2; x = 2, y = 0 or (0, 2), (2, 0) B. x = 0, y = 0; x = 2, y = -2 or (0, 0), (2, -2) C. x = 2, y = -2; x = -2, y = -2 or (2,-2), (-2, -2) D. x = 0, y = -2; x = -2, y = 0 or (0, -2), (-2, 0)
Add the real numbers. Write any improper fraction as a whole or mixed number where appropriate.- 
+ 
A. - 
B. 
C. 1
D. - 1