Translate the phrase to an algebraic expression. Use x to represent "a number."A number divided by 15
A. 15 ÷ x or 
B. x - (15)
C. x ÷ 15 or 
D. 15 ? x or 15x
Answer: C
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Solve the problem.A researcher finds a positive correlation between the amount of coffee people drink and anxiety level. Can you conclude that drinking coffee causes anxiety? Propose other explanations for the correlation. Suggest some ways that the researcher could go about establishing causality. Refer to the six guidelines for establishing causality.
What will be an ideal response?
Write the standard form of the equation of the circle. 
A. (x - 4)2 + (y - 4)2 = 4 B. (x + 4)2 + (y + 4)2 = 4 C. (x - 4)2 + (y - 4)2 = 2 D. (x + 4)2 + (y + 4)2 = 2
Multiply the polynomials using the special product formulas. Express the answer as a single polynomial in standard form.(5x + 3)3
A. 125x3 + 225x2 + 135x + 27 B. 25x6 + 15x3 + 729 C. 25x2 + 30x + 9 D. 125x3 + 225x2 + 225x + 27
The following table shows the earnings for the Juarez family last year. Solve the problem.MonthEarningsMonthEarningsJan.$1400July$1300Feb.$1150Aug.$2450Mar.$2950Sept.$2500Apr.$2300Oct.$2000May$1650Nov.$2350June$2700Dec.$2400The family saved 
of their total income each month. How much savings did they have at the end of June?
A. $812 B. $644 C. $910 D. $850.50