Write the English phrase as an algebraic expression. Then simplify the expression. Let x represent the number.The product of 3 and a number, which is then added to the product of 12 and the number.
A. 12x + 3x; 36x
B. 3x ? 12x; 36x
C. 12x + 3x; 15x
D. 12x - 3x; 9x
Answer: C
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The volume V, in cubic inches, of a spherical balloon depends on its radius r, measured in inches. The relationship is
.
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A: Make a graph of the volume of the balloon versus the radius. Include radii up to 10 inches.B: What is the radius of the balloon if its volume is 496 cubic inches? Round your answer to two decimal places if necessary.C: If one balloon has twice the radius of another balloon, how do their volumes compare?
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What will be an ideal response?
Solve the equation.
= 13
A. -26 B. -13 C. -15 D. -24
Write the number as an improper fraction.15
A. 
B. 
C. 8
D. 
Find the location of the indicated absolute extremum for the function.Minimum
A. No minimum B. x = 2 C. x = -1 D. x = 1