Write a description of the shaded region using the symbols A, B, C, ?, ?, -, and ' as needed.
A. A ? B ? C'
B. (A ? B) ? C'
C. (A ? B) ? C'
D. (A ? B ? C)'
Answer: B
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Determine whether function is one-to-one.{(12, -12), (-9, -1), (-15, 6)}
A. Yes B. No
Provide an appropriate response.Is f continuous at f(1)? 
A. Yes B. No
Provide an appropriate response.One centimeter is equal to 1 × 10-5 kilometers. Write 1 × 10-5 in standard form.
A. 0.0001 B. 0.00001 C. 100,000 D. 0.000001
Solve the problem.Kidstown Daycare charges $1.75 per hour or fraction of an hour for childcare. The maximum charge per day is $7.50. Write a function that gives the charge for h hours with 
Then graph the function and identify at what values of h it is continuous.
A. f(x) = 
;
Continuous at all values of h.
B. f(x) = 
;
Continuous at all h except at the positive integers from 1 to < 4
C. f(x) = 
;
Continuous at all values of h.
D. f(x) = 
;
Continuous at all h except at the positive integers from 1 to < 4