Solve the problem.Claire has received scores of 85, 88, 87, and 90 on her algebra tests. What is the minimum score she must receive on the fifth test to have an overall test score average of at least 87? (Hint: The average of a list of numbers is their sum divided by the number of numbers in the list.)
A. 83
B. 86
C. 85
D. 84
Answer: C
Mathematics
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Multiply.(0.688)(104)
A. 688 B. 68.8 C. 0.0688 D. 6880
Mathematics
Determine the maximum number of turning points of f.f(x) = (6x + 2)4( x4 + 2)(x + 4)
A. 54 B. 9 C. 4 D. 8
Mathematics
Find the exact value of the expression. Do not use a calculator.tan 30° - cos 45°
A. 
B. 
C. 
D. 
Mathematics
The following table shows the earnings for the Juarez family last year. Use this information to answer the question.MonthEarningsMonthEarningsJan.$1400July$1300Feb.$1150Aug.$2450Mar.$2950Sept.$2500Apr.$2300Oct.$2000May$1650Nov.$2350June$2700Dec.$2400What was the family's total income for the year?
A. $22,000 B. $25,150 C. $24,000 D. $23,750
Mathematics