Solve the problem.A couple with a monthly income of $1700 spends 89% of its earnings and saves the balance. Find (i) the monthly savings and (ii) the annual savings of this couple.
A. (i) $187;
(ii) $1870
B. (i) $1513;
(ii) $15,130
C. (i) $1513;
(ii) $18,156
D. (i) $187;
(ii) $2244
Answer: D
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Solve the problem.Jody is using a recipe that calls for 
cup of milk per batch. If she has 17
cups of milk available, how many batches can she make?
A. 24 batches B. 20 batches C. 46 batches D. 23 batches
Solve the problem.The concentration of alcohol in a person's blood is measurable. Suppose that the risk R (given as a percent) of having an accident while driving a car can be modeled by the equation R = 7ekxwhere x is the variable concentration of alcohol in the blood and k is a constant.(a) Suppose that a concentration of alcohol in the blood of 0.08 results in a 13% risk 
of an accident. Find the constant k in the equation.(b) Using this value of k, what is the risk if the concentration is 0.013?(c) Using the same value of k, what concentration of alcohol corresponds to a risk of 100%?(d) If the law asserts that anyone with a risk of having an accident of 12 or
more should not have driving privileges, at what concentration of alcohol in the blood should a driver be arrested and charged with a DUI? What will be an ideal response?
Write down all the subsets of the given set.{1, 4, 8, 12}
A. {1}, {4}, {8}, {12}, {1, 4}, {1, 8}, {1, 12}, {4, 8}, {4, 12}, {8, 12}, {1, 4, 8}, {1, 4, 12}, {1, 8, 12}, {4, 8, 12}, {1, 4, 8, 12} B. {1}, {4}, {8}, {12}, {1, 4}, {1, 8}, {1, 12}, {4, 8}, {4, 12}, {8, 12}, {1, 4, 8}, {1, 4, 12}, {1, 8, 12}, {4, 8, 12}, ? C. {1}, {4}, {8}, {12}, {1, 4}, {1, 8}, {1, 12}, {4, 8}, {4, 12}, {8, 12}, {1, 4, 8}, {1, 4, 12}, {1, 8, 12}, {4, 8, 12}, {1, 4, 8, 12}, ? D. {1}, {4}, {8}, {12}, {1, 4}, {1, 8}, {1, 12}, {4, 8}, {4, 12}, {1, 4, 8}, {1, 4, 12}, {1, 8, 12}, {4, 8, 12}, {1, 4, 8, 12}, ?
Solve the problem.The product of two consecutive integers is 42. Find the integers.
A. -7 and 6 B. -7 and 6 or -6 and 7 C. -7 and -6 or 6 and 7 D. -6 and 7