Write the phrase as a mathematical expression. Use x to represent the number. Combine like terms if possible.Seven times a number added to -4, subtracted from triple the sum of eight times the number 
A. (-4 + 7x) - 3(8x - 7); 17 - 17x
B. 7(x - 4) - (3 + 8)(x - 7); 49 - 4x
C. 3(8x - 7) - (-4 + 7x); -17 + 17x
D. (3 + 8)(x + -7) - 7(x - 4); -49 + 4x
Answer: C
Mathematics
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Perform the indicated operations.
- 
A. - 
x2y + 
B. 
x2y + 
C. 
x2y + 
D. - 
x2y + 
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Use the properties of logarithms to find the exact value of the expression. Do not use a calculator.log4 24 - log4 6
A. 1 B. 6 C. 4 D. 24
Mathematics
Find the coordinates of the midpoint of the line segment PQ.P(3a, 9), Q(4a, 8)
A. (7a, 17)
B. (a, 1)
C. 
D. 
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