Write each rate as a unit rate as a phrase, and determine which is a better buy.A case of 30 bottles of IceMan'water costs $3.90. A case of 20 bottles of Big Mountain water costs $3.00.
A. IceMan: $3.90 per bottle; Big Mountain: $3.00 per bottle. IceMan water is the better buy.
B. IceMan: $0.15 per bottle; Big Mountain: $0.13 per bottle. Big Mountain water is the better buy.
C. IceMan: $0.13 per bottle; Big Mountain: $0.15 per bottle. IceMan water is the better buy.
D. IceMan: $0.13 per bottle; Big Mountain: $0.10 per bottle. Big Mountain water is the better buy.
Answer: C
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Solve.An elliptical riding path is to be built on a rectangular piece of property that measures 10 mi by 8 mi. Find an equation for the ellipse if the path is to touch the center of the property line on all 4 sides.A = 10 miB = 8 mi 
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Provide an appropriate response.Solve the inequality: x - 4 < 5 < 2x + 3
A. 1 < x < 9 B. 1 < x < 4 C. x < 1 or x > 4 D. x < 1 or x > 9
Solve for x using an equivalent exponential expression.A partial map of a state in a road atlas covers a square area of 25,600 square miles. What is the length of each side of the square area?
A. 160 mi B. 256 mi C. 16 mi D. 6,400 mi
Write the interval as an inequality involving x, and illustrate the inequality using the real number line.(4, ?)
A. x > 4
B. x ? 4
C. x > 4
D. x ? 4