Suppose a car uses 60 gallons of gasoline for a trip of 600 miles. How many gallons would be used on a trip of 100 miles?
A. 20 gallons
B. 1000 gallons
C. 21 gallons
D. 10 gallons
E. 1001 gallons
Answer: D
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Solve the problem.The surface area of a hollow cylinder (tube) is given by 
where h is the length of the cylinder and R1 and R2 are the outer and inner radii. If h, R1, and R2 are measured to be 9 inches, 3 inches, and 7 inches respectively, and if these measurements are accurate to within 0.1 inches, estimate the maximum possible error in computing S.
A. 12.57 B. 11.94 C. 17.59 D. 13.82
Graph the circle.x2 + y2 = 9
A. 
B. 
C. 
D. 
Provide an appropriate response.
The angle of depression from a hot air balloon to the spot for landing is 51°. The altimeter reads a height of 1,200 feet. What is the distance along the path of descent that the balloonist needs to travel to land exactly on the middle of the X? 
A. 1,544 ft B. 1,482 ft C. 972 ft D. 1,907 ft
Solve the equation. Express radicals in simplest form.(r + 4)2 = 10
A. 6
B. 4 + 
, 4 - 
C. 
, 
D. -4 + 
, -4 - 