Write the English phrase as an algebraic expression, then simplify the expression. Let x represent the number.The difference of 7 times a number and 3 times the number
A. 7x - 3x; 10x
B. 7x - 3x; 4x
C. 3x - 7x; -4x
D. 7x + 3x; 10x
Answer: B
Mathematics
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Divide. Express the quotient in lowest terms.
÷ 
A. 
B. 
C. - 
D. 
Mathematics
Solve the problem.A truck rental company rents a moving truck one day by charging $29 plus $0.09 per mile. Write a linear equation that relates the cost C, in dollars, of renting the truck to the number x of miles driven. What is the cost of renting the truck if the truck is driven 190 miles?
A. C(x) = 0.09x + 29; $30.71 B. C(x) = 0.09x + 29; $46.10 C. C(x) = 29x + 0.09; $5,510.09 D. C(x) = 0.09x - 29; -$11.90
Mathematics
Find the foci of the ellipse.7x2 + 2y2 + 14x - 16y + 25 = 0
A. (-1 + 
, 4) , (-1 - 
, 4)
B. (-1, 4 + 
) , (-1, 4 - 
)
C. (1, -4 + 
) , (1, -4 - 
)
D. (-1, 4 + 
) , (-1, 4 - 
)
Mathematics
Subtract.
- 
A. - 
B. 
C. - 
D. 
Mathematics