Simplify the expression. (Remember the order of operations.)16 - (-14) + 21 + (-12)
A. 35
B. 3
C. 39
D. -35
Answer: C
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Find the x-intercepts of the graph of the equation.y = x2 + 2x - 48
A. (8, 0), (6, 0) B. (8, 0), (-6, 0) C. (-8, 0), (6, 0) D. (-8, 0), (-6, 0)
Provide an appropriate response.The rafters of a house make a 30° angle with the joists. If the rafters have a 20-in. overhang and the center of the roof is 12 ft above the joists, how long must the rafters be cut? 
A. 25 ft 8 in. B. 21 ft 8 in. C. 24 ft 8 in. D. 26 ft
What will the area of the wound be in 8 days?
The area A of a healing would is decreasing at a rate of 
where t is time in days, and A is in square centimeters. On day one, the wound had an area of 2 cm2 .
Perform the indicated operation. Write the answer in simplest form. If the answer is an improper fraction, write it as a mixed number.22
+ 
A. - 3
B. 3
C. 3
D. - 3