Perform the indicated operation and write the answer in the form 
where a and b are real numbers.(4 + 8i)(9 - 4i)
A. 68 - 56i
B. 4 + 88i
C. 68 + 56i
D. -32i2 + 56i + 36
Answer: C
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Solve the problem.A child on a swing initially swings through an arc length of 12 meters. The child stops pushing and sits patiently waiting for the swing to stop moving. If friction slows the swing so the length of each arc is 80% of the length of the previous arc, how far will the child have traveled before the swing stops?
A. 24 m B. The child will travel an infinite distance. C. 60 m D. 25 m
Provide the proper response.Write a sentence or statement using words and numbers that includes a percent, a base, and an amount. Identify the parts.
What will be an ideal response?
Complete the ordered pairs so that each is a solution of the linear equation. Then plot each solution and graph the equation by connecting the points by a straight line.y = 2x + 6(0,
)(1,
)(-1,
)
A. (0, 6)
(1, 4)
(-1, 8)
B. (0, 0)
(1, 6)
(-1, -6)
C. (0, 6)
(1, 8)
(-1, 4)
D. (0, -6)
(1, -4)
(-1, -8)
Perform the indicated arithmetic.7
÷ 10
A. 
B. 
C. 
D. 