Find the unknown in each percent question.What is 86% of 393?
A. 33.8
B. 3379.8
C. 337.98
D. 33,798
Answer: C
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Solve.If y varies inversely as x and x is 6 when y is 12, what is x when y is 5?
A. 14.4 B. 2.5 C. 0.4 D. 9.6
Solve the problem.According to a recent survey, in 2000, 61% of households had one or more pets. Throughout the the next decade, this decreased by approximately 4% per year. Express the percentage of households having pets, P, as a function of the number of years after 2000, x.
A. P(x) = -0.04x + 61 B. P(x) = 0.61x - 0.04 C. P(x) = 0.04x + 0.61 D. P(x) = -0.04x + 0.61
Assume thatxandyare differentiable functions oft.Find 
given that 
, 
style="vertical-align: middle;" data-wiris-created="true" varid="variable_id_field" variablename="impvar_1170335d52fb4b61bcf66827c" />, and 
. Round your answer to two decimal places.
?
?
A. -4.00
B. 2.33
C. -5.25
D. -28.00
E. -9.33
Solve the system by elimination.5 x - y = 114x + y = 16
A. (3, 4) B. (3, 5) C. (4, 3) D. No solution