Add or subtract as indicated. Write the answer in lowest terms.8
+ 20
A. 27
B. 28
C. 29
D. 8
Answer: B
Mathematics
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Provide an appropriate response.Show that if a and b are not both 0, the graph of the equation 
is a circle. Find the radius and the rectangular coordinates of the center of this circle.
What will be an ideal response?
Mathematics
Find the domain and the vertical asymptote of the function.f(x) = log (x - 9)
A. Domain : (-9, ?); vertical asymptote: x = -9 B. Domain (1, ?); vertical asymptote: x = 1 C. Domain (0, ?); vertical asymptote: x = 0 D. Domain (9, ?); vertical asymptote: x = 9
Mathematics
Solve the problem.The sum of the squares of the digits of a positive two-digit number is 85, and the tens digit is 1 less than the units digit. Find the number.
A. 56 B. 65 C. 67 D. 76
Mathematics
Add and simplify.
+ 
A. 
B. 
C. 
D. 
Mathematics