Solve the problem.There is a formula that gives a correspondence between women's shoe sizes in the United States and those in Italy. The formula is 
where S is the size in Italy and x is the size in the United States. What would be the US size for an Italian size of 38?
A. 88
B. 7
C. 14
D. 3.5
Answer: B
Mathematics
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Determine if the following is a function or not. f(x) = 1 for x ? {0, 2, 4, 6, ...} and f(x) = 0 for x ? {1, 3, 5, 7, . . .}
A. Yes B. No
Mathematics
Divide. Write the answer in simplest form.
÷ 
A. 
B. 
C. 
D. 
Mathematics
Solve the polynomial equation graphically or numerically. Round to the nearest hundredth if necessary.x4 - 10x2 + 21 = 0
A. -2.65, -2.13, 2.13, 2.65 B. -2.45, -1.73, 1.73, 2.35 C. -2.65, -1.73, 1.73, 2.65 D. 1.73, 2.65
Mathematics
Solve the equation numerically by completing the given table of values.8x - 4 = 2.4 
A. 0.9 B. 0.7 C. 0.8 D. 0.6
Mathematics